When astronauts set foot on Mars, it will be one of humanity's greatest milestones. These first steps will be the result of decades of research, engineering, and imagination coming together, marking the beginning of a new era of discovery on another planet.
A Science Strategy for the Human Exploration of Mars identifies the highest-priority science objectives for the first human mission to Mars, placing the search for life at the top of the list. The report examines scientific opportunities across Mars' geology, climate, water and CO₂ cycles, dust storms, and the environmental factors affecting human health and biological systems. It evaluates four potential multi-mission campaign concepts and outlines how crew-led science, robotic tools, drilling, and sample return can work together to advance understanding of Mars and prepare for sustained human exploration.
Topics: Space and Aeronautics » Space Exploration and Development | Space and Aeronautics » Policy, Reviews and Evaluations
The field of solar and space physics explores the heliosphere - the vast protective bubble formed by the solar wind that extends from the Sun to the outer fringes of the solar system, and beyond. This booklet highlights key themes and recommendations from the 2025 decadal survey for solar and space physics, The Next Decade of Discovery in Solar and Space Physics: Exploring and Safeguarding Humanity's Home in Space.
Topics: Space and Aeronautics » Astronomy and Astrophysics | Space and Aeronautics » Space Exploration and Development | Space and Aeronautics » Policy, Reviews and Evaluations
Contrails are visible lines in the sky behind aircraft that occur when warm jet engine exhaust meets the colder surrounding atmosphere, forming small ice crystals. Most contrails dissipate within about 10 minutes, but they can last for hours under certain conditions. Persistent contrails can contribute to atmospheric warming and are estimated to have a climate impact on par with carbon dioxide emissions from aviation.
In early 2024, NASA requested that the National Academies develop a national research agenda to better understand, quantify, and develop technical and operational solutions to reduce the global climate impact of aviation-induced cloudiness and persistent contrails. This report presents priorities for a national contrails research strategy and provides a vision for how this research could eventually support operational contrails mitigation. This research would support the global economic competitiveness of the U.S. civil aviation industry in the context of emerging international aviation regulations.
Topics: Space and Aeronautics » Aircraft and Flight | Environment and Environmental Studies » Climate Change | Space and Aeronautics » Policy, Reviews and Evaluations | Environment and Environmental Studies » Policy, Reviews and Evaluations
Groundbreaking advances in solar and space physics have provided key insights into the dynamic physical processes on the Sun and its influence on Earth, the near-Earth space environment, other planets in our solar system, and beyond. As we look to the next decade, future discoveries in the field will expand our knowledge of the cosmos and better prepare us for the impact of space weather events on critical systems and humanity. The Next Decade of Discovery in Solar and Space Physics: Exploring and Safeguarding Humanity's Home in Space, a National Academies' decadal survey, presents a prioritized strategy for basic and applied research to advance scientific understanding of the heliosphere and the origins of space weather, the Sun's interactions with other bodies in the solar system, and the interplanetary and interstellar mediums.
Topics: Space and Aeronautics » Space Exploration and Development | Space and Aeronautics » Astronomy and Astrophysics | Space and Aeronautics » Policy, Reviews and Evaluations
Since its formation more than 60 years ago, the National Aeronautics and Space Administration (NASA) has served as a global leader in science, aeronautics, and exploration, propelled technological innovation, and inspired youth to pursue careers in science and engineering, while often accomplishing the seemingly impossible. However, despite its critical and transformative role, NASA faces an uncertain future due to declining national investment as a percentage of gross domestic product and systemic issues that compromise its infrastructure, workforce, and capacity for technological innovation.
As requested by Congress in the CHIPS and Science Act of 2022, the National Academies of Sciences, Engineering, and Medicine convened an independent expert committee to evaluate whether NASA's current workforce, infrastructure, technological capabilities, and their interfaces can meet its strategic goals. NASA at a Crossroads: Maintaining Workforce, Infrastructure, and Technology Preeminence in the Coming Decades considers the critical facilities and emerging technologies necessary to fulfill NASA's mission, as well as the workforce skills and organizational structure required to perform and support the work of the mission directorates, both now and in the future.
Topics: Space and Aeronautics » Policy, Reviews and Evaluations
In 2018, the National Academies released Thriving on Our Changing Planet: A Decadal Strategy for Earth Observation from Space. The decadal survey identified key science questions and prioritized observational needs to advance U.S. efforts in Earth science and support critical applications such as climate modeling and weather prediction. In the past few years, the need for actionable data and better scientific information on Earth's interacting systems has increased in urgency, as global climate change accelerates coupled with increasing numbers of extreme weather events.
At the request of NASA, this mid-term assessment evaluates progress and recommends actions to meet decadal survey priorities. This report explores ways that NASA's Earth Science Division can maintain programmatic balance, improve alignment with decadal survey priorities, and prepare for the next decadal survey.
Topics: Space and Aeronautics » Policy, Reviews and Evaluations | Space and Aeronautics » Space Exploration and Development
Research in biological and physical sciences in space provides the critical scientific and technological foundations that make space exploration possible. This booklet summarizes recent advances in the biological and physical sciences that have changed our understanding of the factors important to human, plant, animal, and microbial health, and then highlights research needs to make transformative advances in space.
Topics: Space and Aeronautics » Space Exploration and Development | Space and Aeronautics » Policy, Reviews and Evaluations
Research in biological and physical sciences in space provides the critical scientific and technological foundations that make space exploration possible. As humanity looks towards the Moon and Mars for future missions, this work is needed to help astronauts adapt and live in the harsh environments of space. Thriving in Space provides a roadmap for increasing national investment in biological and physical science research, from experiments to infrastructure to education. This report identifies key scientific questions, priorities, and ambitious research campaigns that will enable human space exploration and transform our understanding of how the universe works.
Thriving in Space reviews the state of knowledge in the current and emerging areas of space-related biological and physical sciences research and generates recommendations for a comprehensive vision and strategy for a decade of transformative science at the frontiers of biological and physical sciences research in space. This report will help NASA define and align biological and physical sciences research to uniquely advance scientific knowledge, meet human and robotic exploration mission needs, and provide terrestrial benefits.
Topics: Space and Aeronautics » Policy, Reviews and Evaluations
The next decade of planetary science and astrobiology holds tremendous promise. This booklet highlights key science questions, identifies priority missions, and presents a research strategy that includes both planetary defense and human exploration.
Topics: Space and Aeronautics » Astronomy and Astrophysics | Space and Aeronautics » Space Exploration and Development | Space and Aeronautics » Policy, Reviews and Evaluations
We live in a time of extraordinary discovery and progress in astronomy and astrophysics. The next decade will transform our understanding of the universe and humanity's place in it. Every decade the U.S. agencies that provide primary federal funding for astronomy and astrophysics request a survey to assess the status of, and opportunities for the Nation's efforts to forward our understanding of the cosmos. Pathways to Discovery in Astronomy and Astrophysics for the 2020s identifies the most compelling science goals and presents an ambitious program of ground- and space-based activities for future investment in the next decade and beyond. The decadal survey identifies three important science themes for the next decade aimed at investigating Earth-like extrasolar planets, the most energetic processes in the universe, and the evolution of galaxies. The Astro2020 report also recommends critical near-term actions to support the foundations of the profession as well as the technologies and tools needed to carry out the science.
Topics: Space and Aeronautics » Astronomy and Astrophysics | Space and Aeronautics » Space Exploration and Development | Space and Aeronautics » Policy, Reviews and Evaluations
The next decade of planetary science and astrobiology holds tremendous promise. New research will expand our understanding of our solar system's origins, how planets form and evolve, under what conditions life can survive, and where to find potentially habitable environments in our solar system and beyond. Origins, Worlds, and Life: A Decadal Strategy for Planetary Science and Astrobiology 2023-2032 highlights key science questions, identifies priority missions, and presents a comprehensive research strategy that includes both planetary defense and human exploration. This report also recommends ways to support the profession as well as the technologies and infrastructure needed to carry out the science.
Topics: Space and Aeronautics » Astronomy and Astrophysics | Space and Aeronautics » Space Exploration and Development | Space and Aeronautics » Policy, Reviews and Evaluations
In December 2020, the National Reconnaissance Offices Geospatial Intelligence Directorate asked the National Academies of Sciences, Engineering, and Medicine to review the advancements and changes that have occurred since the production of the classified consensus study Acquisition Strategies for Future Space Based Optics in 2018. The resulting letter report and its contents are classified and cannot be summarized here. This publication is the unclassified summary of that report.
Topics: Space and Aeronautics » Space Systems and Hardware | Space and Aeronautics » Policy, Reviews and Evaluations
Recent discoveries and emerging technologies in astronomy and astrophysics have sparked transformative new endeavors to understand the universe and our place in it. This booklet presents an ambitious vision for exploring the cosmos over the next decade and beyond. It outlines the investments needed to cultivate and sustain the people who drive innovation and discovery, the tools to carry out the science, and the research insights that will expand humanity's horizons.
Topics: Space and Aeronautics » Astronomy and Astrophysics | Space and Aeronautics » Policy, Reviews and Evaluations
Fostering diverse and inclusive teams that are highly skilled, innovative, and productive is critical for maintaining U.S. leadership in space exploration. In recent years, NASA has taken steps to advance diversity, equity, inclusion, and accessibility (DEIA) in their workforce by releasing its equity action plan, emphasizing how diverse and inclusive teams help maximize scientific returns, and requiring DEIA plans as part of announcements of opportunities. To further its efforts to advance DEIA, the Agency requested the National Academies undertake a study to evaluate ways NASA can address the lack of diversity in space mission leadership.
Advancing Diversity, Equity, Inclusion, and Accessibility in the Leadership of Competed Space Missions outlines near and long-term actions NASA can take to make opportunities for leadership and involvement in competed space missions more accessible, inclusive, and equitable. Report recommendations range from changes to the mission proposal process to investments in STEM education and career pathways. This report makes 15 recommendations for advancing DEIA within NASA's Science Mission Directorate divisions that support competed space mission programs. However, many of the report's recommendations could also be applied broadly to research at NASA and other federal agencies and institutions, leading to a more diverse research workforce.
Topics: Space and Aeronautics » Policy, Reviews and Evaluations | Education » Math and Science Education
We live on a dynamic Earth shaped by both natural processes and the impacts of humans on their environment. It is in our collective interest to observe and understand our planet, and to predict future behavior to the extent possible, in order to effectively manage resources, successfully respond to threats from natural and human-induced environmental change, and capitalize on the opportunities – social, economic, security, and more – that such knowledge can bring.
By continuously monitoring and exploring Earth, developing a deep understanding of its evolving behavior, and characterizing the processes that shape and reshape the environment in which we live, we not only advance knowledge and basic discovery about our planet, but we further develop the foundation upon which benefits to society are built. Thriving on Our Changing Planet: A Decadal Strategy for Earth Observation from Space (National Academies Press, 2018) provides detailed guidance on how relevant federal agencies can ensure that the United States receives the maximum benefit from its investments in Earth observations from space, while operating within realistic cost constraints. This short booklet, designed to be accessible to the general public, provides a summary of the key ideas and recommendations from the full decadal survey report.
Topics: Space and Aeronautics » Policy, Reviews and Evaluations
This study originated with congressionally directed language from the House Permanent Select Committee for Intelligence (HPSCI) in 2016 and titled "Acquisition Strategies for Future Space Based Optics". This publication is an unclassified summary of the classified report.
Topics: Conflict and Security Issues » Military and Defense Studies | Conflict and Security Issues » Weapons and Technology | Space and Aeronautics » Space Systems and Hardware
We live on a dynamic Earth shaped by both natural processes and the impacts of humans on their environment. It is in our collective interest to observe and understand our planet, and to predict future behavior to the extent possible, in order to effectively manage resources, successfully respond to threats from natural and human-induced environmental change, and capitalize on the opportunities – social, economic, security, and more – that such knowledge can bring.
By continuously monitoring and exploring Earth, developing a deep understanding of its evolving behavior, and characterizing the processes that shape and reshape the environment in which we live, we not only advance knowledge and basic discovery about our planet, but we further develop the foundation upon which benefits to society are built. Thriving on Our Changing Planet presents prioritized science, applications, and observations, along with related strategic and programmatic guidance, to support the U.S. civil space Earth observation program over the coming decade.
Topics: Space and Aeronautics » Astronomy and Astrophysics | Space and Aeronautics » Policy, Reviews and Evaluations
The original charter of the Space Science Board was established in June 1958, three months before the National Aeronautics and Space Administration (NASA) opened its doors. The Space Science Board and its successor, the Space Studies Board (SSB), have provided expert external and independent scientific and programmatic advice to NASA on a continuous basis from NASA's inception until the present. The SSB has also provided such advice to other executive branch agencies, including the National Oceanic and Atmospheric Administration (NOAA), the National Science Foundation (NSF), the U.S. Geological Survey (USGS), the Department of Defense, as well as to Congress.
Space Studies Board Annual Report 2017 covers a message from the chair of the SSB, David N. Spergel. This report also explains the origins of the Space Science Board, how the Space Studies Board functions today, the SSB's collaboration with other National Academies of Sciences, Engineering, and Medicine units, assures the quality of the SSB reports, acknowledges the audience and sponsors, and expresses the necessity to enhance the outreach and improve dissemination of SSB reports. This report will be relevant to a full range of government audiences in civilian space research - including NASA, NSF, NOAA, USGS, and the Department of Energy, as well members of the SSB, policy makers, and researchers.
Topics: Space and Aeronautics » Policy, Reviews and Evaluations
The original charter of the Space Science Board was established in June 1958, 3 months before the National Aeronautics and Space Administration (NASA) opened its doors. The Space Science Board and its successor, the Space Studies Board (SSB), have provided expert external and independent scientific and programmatic advice to NASA on a continuous basis from NASA's inception until the present. The SSB has also provided such advice to other executive branch agencies, including the National Oceanic and Atmospheric Administration (NOAA), the National Science Foundation (NSF), the U.S. Geological Survey (USGS), the Department of Defense, as well as to Congress.
Space Studies Board Annual Report 2016 covers a message from the chair of the SSB, David N. Spergel. This report also explains the origins of the Space Science Board, how the Space Studies Board functions today, the SSB's collaboration with other National Academies of Sciences, Engineering, and Medicine units, assures the quality of the SSB reports, acknowledges the audience and sponsors, and expresses the necessity to enhance the outreach and improve dissemination of SSB reports. This report will be relevant to a full range of government audiences in civilian space research - including NASA, NSF, NOAA, USGS, and the Department of Energy, as well members of the SSB, policy makers, and researchers.
Topics: Space and Aeronautics » Policy, Reviews and Evaluations
The original charter of the Space Science Board was established in June 1958, 3 months before the National Aeronautics and Space Administration (NASA) opened its doors. The Space Science Board and its successor, the Space Studies Board (SSB), have provided expert external and independent scientific and programmatic advice to NASA on a continuous basis from NASA's inception until the present. The SSB has also provided such advice to other executive branch agencies, including the National Oceanic and Atmospheric Administration (NOAA), the National Science Foundation (NSF), the U.S. Geological Survey (USGS), the Department of Defense, as well as to Congress.
Space Studies Board Annual Report 2015 covers a message from the chair of the SSB, David N. Spergel. This report also explains the origins of the Space Science Board, how the Space Studies Board functions today, the SSB's collaboration with other National Research Council units, assures the quality of the SSB reports, acknowledges the audience and sponsors, and expresses the necessity to enhance the outreach and improve dissemination of SSB reports.
This report will be relevant to a full range of government audiences in civilian space research - including NASA, NSF, NOAA, USGS, and the Department of Energy, as well members of the SSB, policy makers, and researchers.
Topics: Space and Aeronautics » Policy, Reviews and Evaluations
The original charter of the Space Science Board was established in June 1958, 3 months before the National Aeronautics and Space Administration (NASA) opened its doors. The Space Science Board and its successor, the Space Studies Board (SSB), have provided expert external and independent scientific and programmatic advice to NASA on a continuous basis from NASA's inception until the present. The SSB has also provided such advice to other executive branch agencies, including the National Oceanic and Atmospheric Administration (NOAA), the National Science Foundation (NSF), the U.S. Geological Survey (USGS), the Department of Defense, as well as to Congress.
Space Studies Board Annual Report 2014 covers a message from the chair of the SSB, David N. Spergel. This report also explains the origins of the Space Science Board, how the Space Studies Board functions today, the SSB's collaboration with other National Research Council units, assures the quality of the SSB reports, acknowledges the audience and sponsors, and expresses the necessity to enhance the outreach and improve dissemination of SSB reports.
This report will be relevant to a full range of government audiences in civilian space research - including NASA, NSF, NOAA, USGS, and the Department of Energy, as well members of the SSB, policy makers, and researchers.
Topics: Space and Aeronautics » Policy, Reviews and Evaluations
Pathways to Exploration discusses the challenges to NASA's human exploration program, and recommends maintaining the long-term focus on Mars as the next goal.
Topics: Space and Aeronautics » Space Exploration and Development
In 2010, NASA and the National Science Foundation asked the National Research Council to assemble a committee of experts to develop an integrated national strategy that would guide agency investments in solar and space physics for the years 2013-2022. That strategy, the result of nearly 2 years of effort by the survey committee, which worked with more than 100 scientists and engineers on eight supporting study panels, is presented in the 2013 publication, Solar and Space Physics: A Science for a Technological Society. This booklet, designed to be accessible to a broader audience of policymakers and the interested public, summarizes the content of that report.
Topics: Space and Aeronautics » Astronomy and Astrophysics | Math, Chemistry, and Physics » Physics
The original charter of the Space Science Board was established in June 1958, 3 months before the National Aeronautics and Space Administration (NASA) opened its doors. The Space Science Board and its successor, the Space Studies Board (SSB), have provided expert external and independent scientific and programmatic advice to NASA on a continuous basis from NASA's inception until the present. The SSB has also provided such advice to other executive branch agencies, including the National Oceanic and Atmospheric Administration (NOAA), the National Science Foundation (NSF), the U.S. Geological Survey (USGS), the Department of Defense, as well as to Congress.
Space Studies Board Annual Report 2013 covers a message from the chair of the SSB, Charles F. Kennel. This report also explains the origins of the Space Science Board, how the Space Studies Board functions today, the SSB's collaboration with other National Research Council units, assures the quality of the SSB reports, acknowledges the audience and sponsors, and expresses the necessity to enhance the outreach and improve dissemination of SSB reports.
This report will be relevant to a full range of government audiences in civilian space research - including NASA, NSF, NOAA, USGS, and the Department of Energy, as well members of the SSB, policy makers, and researchers.
Topics: Space and Aeronautics » Policy, Reviews and Evaluations
NASA's Science Mission Directorate (SMD) is engaged in the final stages of a comprehensive, agency-wide effort to develop a new strategic plan at a time when its budget is under considerable stress. SMD's Science Plan serves to provide more detail on its four traditional science disciplines - astronomy and astrophysics, solar and space physics (also called heliophysics), planetary science, and Earth remote sensing and related activities - than is possible in the agency-wide Strategic Plan.
Review of the Draft 2014 Science Mission Directorate Science Plan comments on the responsiveness of SMD's Science Plan to the National Research Council's guidance on key science issues and opportunities in recent NRC decadal reports. This study focuses on attention to interdisciplinary aspects and overall scientific balance; identification and exposition of important opportunities for partnerships as well as education and public outreach; and integration of technology development with the science program. The report provides detailed findings and recommendations relating to the draft Science Plan.
Topics: Space and Aeronautics » Policy, Reviews and Evaluations
From the interior of the Sun, to the upper atmosphere and near-space environment of Earth, and outward to a region far beyond Pluto where the Sun's influence wanes, advances during the past decade in space physics and solar physics—the disciplines NASA refers to as heliophysics—have yielded spectacular insights into the phenomena that affect our home in space.
Solar and Space Physics, from the National Research Council's (NRC's) Committee for a Decadal Strategy in Solar and Space Physics, is the second NRC decadal survey in heliophysics. Building on the research accomplishments realized during the past decade, the report presents a program of basic and applied research for the period 2013-2022 that will improve scientific understanding of the mechanisms that drive the Sun's activity and the fundamental physical processes underlying near-Earth plasma dynamics, determine the physical interactions of Earth's atmospheric layers in the context of the connected Sun-Earth system, and enhance greatly the capability to provide realistic and specific forecasts of Earth's space environment that will better serve the needs of society.
Although the recommended program is directed primarily at NASA and the National Science Foundation for action, the report also recommends actions by other federal agencies, especially the parts of the National Oceanic and Atmospheric Administration charged with the day-to-day (operational) forecast of space weather. In addition to the recommendations included in this summary, related recommendations are presented in this report.
Topics: Space and Aeronautics » Policy, Reviews and Evaluations | Space and Aeronautics » Space Exploration and Development | Math, Chemistry, and Physics » Physics | Space and Aeronautics » Astronomy and Astrophysics
Solar irradiance is a vital source of energy input for the Earth's climate system and its variability has the potential to mitigate or exacerbate a human-created climate. Maintaining an unbroken record of Total Solar Irradiance (TSI) is critical in resolving ongoing debates regarding the potential role of solar variability in influencing Earth's climate. Space-borne instruments have acquired TSI data since 1978. Currently, the best calibrated and lowest noise source of TSI measurements is the Total Irradiance Monitor (TIM) onboard NASA's Solar Radiation and Climate Experiment (SORCE). These TIM-era data are of higher quality than the older data in the full record. Thus, the TSI climate data record (CDR) has two components. There is the shorter, but more accurate record of the TIM era and the full (33+ year) space-based TSI measurement record. Both are important and require preservation.
Review of NOAA Working Group Report on Maintaining the Continuation of Long-Term Satellite Total Irradiance Observations evaluates NOAA's plan for mitigating the loss of total solar irradiance measurements from space, given the likelihood of losing this capacity from instruments currently on the SORCE satellite in coming years and the short term/experimental nature of the currently identified method of filling the data gap. This report evaluates NOAA's plan for mitigating the gap in total solar irradiance data.
Topics: Space and Aeronautics » Space Systems and Hardware | Earth Sciences » Climate, Weather and Meteorology
The original charter of the Space Science Board was established in June 1958, 3 months before the National Aeronautics and Space Administration (NASA) opened its doors. The Space Science Board and its successor, the Space Studies Board (SSB), have provided expert external and independent scientific and programmatic advice to NASA on a continuous basis from NASA's inception until the present. The SSB has also provided such advice to other executive branch agencies, including the National Oceanic and Atmospheric Administration (NOAA), the National Science Foundation (NSF), the U.S. Geological Survey (USGS), the Department of Defense, as well as to Congress.
Space Studies Board Annual Report 2012 covers a message from the chair of the SSB, Charles F. Kennel. This report also explains the origins of the Space Science Board, how the Space Studies Board functions today, the SSB's collaboration with other National Research Council units, assures the quality of the SSB reports, acknowledges the audience and sponsors, and expresses the necessity to enhance the outreach and improve dissemination of SSB reports.
This report will be relevant to a full range of government audiences in civilian space research - including NASA, NSF, NOAA, USGS, and the Department of Energy, as well members of the SSB, policy makers, and researchers.
Topics: Space and Aeronautics » Policy, Reviews and Evaluations
Astronomy occupies a special place in the research portfolio of this country. Understanding the cosmos is one of the oldest intellectual goals of humanity, and the discoveries of astronomers clearly excite the imagination of the public at large. From primary schools to universities, from planetaria to features in the media, astronomy offers numerous opportunities to improve the scientific literacy of this nation, and astronomers are increasingly engaged in these educational activities. Although for many people astronomy is a clear example of one of the noblest of basic research activities, it is often less recognized that it can and does contribute to other national goals. In particular, its research activities depend on and contribute to the applied development of sophisticated sensors, an essential enabling technology for many scientific fields and for the defense, medical, and commercial sectors, modern astronomical facilities, and their sophisticated instrumentation, utilizing state-of- the-art detectors, computing resources, and optical design, are expensive.
Astronomers are fortunate that the Congress has authorized the construction of numerous major national facilities. National ground-based astronomical facilities are supported primarily by the National Science Foundation (NSF), both in the construction and operations phases. Still, roughly half of U.S. astronomers must rely entirely on the National Optical Astronomy Observatories (NOAO) for access to telescopes, and nearly all rely on NOAO facilities for some aspects of their work. In this eventuality, the panel recommends that the proper instrumentation and operation of the Gemini telescopes should have first priority. The panel also affirms the high priority for the ATI program, which was recommended by the Astronomy and Astrophysics Survey Committee (AASC) report.
Topics: Space and Aeronautics » Astronomy and Astrophysics
The original charter of the Space Science Board was established in June 1958, 3 months before the National Aeronautics and Space Administration (NASA) opened its doors. The Space Science Board and its successor, the Space Studies Board (SSB), have provided expert external and independent scientific and programmatic advice to NASA on a continuous basis from NASA's inception until the present. The SSB has also provided such advice to other executive branch agencies, including the National Oceanic and Atmospheric Administration (NOAA), the National Science Foundation (NSF), the U.S. Geological Survey (USGS), the Department of Defense, as well as to Congress.
Space Studies Board Annual Report 2011 covers a message from the chair of the SSB, Charles F. Kennel, where he expresses that 2011 was a challenging and uncertain year for NASA and the space science research communities. This report also explains the origins of the Space Science Board, how the Space Studies Board functions today, the SSB's collaboration with other National Research Council units, assures the quality of the SSB reports, acknowledges the audience and sponsors, and expresses the necessity to enhance the outreach and improve dissemination of SSB reports.
This report will be relevant to a full range of government audiences in civilian space research - including NASA, NSF, NOAA, USGS, and the Department of Energy, as well members of the SSB, policy makers, and researchers.
Topics: Space and Aeronautics » Policy, Reviews and Evaluations
In recent years, planetary science has seen a tremendous growth in new knowledge. Deposits of water ice exist at the Moon's poles. Discoveries on the surface of Mars point to an early warm wet climate, and perhaps conditions under which life could have emerged. Liquid methane rain falls on Saturn's moon Titan, creating rivers, lakes, and geologic landscapes with uncanny resemblances to Earth's.
Vision and Voyages for Planetary Science in the Decade 2013-2022 surveys the current state of knowledge of the solar system and recommends a suite of planetary science flagship missions for the decade 2013-2022 that could provide a steady stream of important new discoveries about the solar system. Research priorities defined in the report were selected through a rigorous review that included input from five expert panels. NASA's highest priority large mission should be the Mars Astrobiology Explorer Cacher (MAX-C), a mission to Mars that could help determine whether the planet ever supported life and could also help answer questions about its geologic and climatic history. Other projects should include a mission to Jupiter's icy moon Europa and its subsurface ocean, and the Uranus Orbiter and Probe mission to investigate that planet's interior structure, atmosphere, and composition. For medium-size missions, Vision and Voyages for Planetary Science in the Decade 2013-2022 recommends that NASA select two new missions to be included in its New Frontiers program, which explores the solar system with frequent, mid-size spacecraft missions. If NASA cannot stay within budget for any of these proposed flagship projects, it should focus on smaller, less expensive missions first.
Vision and Voyages for Planetary Science in the Decade 2013-2022 suggests that the National Science Foundation expand its funding for existing laboratories and establish new facilities as needed. It also recommends that the program enlist the participation of international partners. This report is a vital resource for government agencies supporting space science, the planetary science community, and the public.
Topics: Space and Aeronautics » Space Exploration and Development | Space and Aeronautics » Policy, Reviews and Evaluations
More than four decades have passed since a human first set foot on the Moon. Great strides have been made in our understanding of what is required to support an enduring human presence in space, as evidenced by progressively more advanced orbiting human outposts, culminating in the current International Space Station (ISS). However, of the more than 500 humans who have so far ventured into space, most have gone only as far as near-Earth orbit, and none have traveled beyond the orbit of the Moon. Achieving humans' further progress into the solar system had proved far more difficult than imagined in the heady days of the Apollo missions, but the potential rewards remain substantial.
During its more than 50-year history, NASA's success in human space exploration has depended on the agency's ability to effectively address a wide range of biomedical, engineering, physical science, and related obstacles—an achievement made possible by NASA's strong and productive commitments to life and physical sciences research for human space exploration, and by its use of human space exploration infrastructures for scientific discovery. The Committee for the Decadal Survey of Biological and Physical Sciences acknowledges the many achievements of NASA, which are all the more remarkable given budgetary challenges and changing directions within the agency. In the past decade, however, a consequence of those challenges has been a life and physical sciences research program that was dramatically reduced in both scale and scope, with the result that the agency is poorly positioned to take full advantage of the scientific opportunities offered by the now fully equipped and staffed ISS laboratory, or to effectively pursue the scientific research needed to support the development of advanced human exploration capabilities.
Although its review has left it deeply concerned about the current state of NASA's life and physical sciences research, the Committee for the Decadal Survey on Biological and Physical Sciences in Space is nevertheless convinced that a focused science and engineering program can achieve successes that will bring the space community, the U.S. public, and policymakers to an understanding that we are ready for the next significant phase of human space exploration. The goal of this report is to lay out steps and develop a forward-looking portfolio of research that will provide the basis for recapturing the excitement and value of human spaceflight—thereby enabling the U.S. space program to deliver on new exploration initiatives that serve the nation, excite the public, and place the United States again at the forefront of space exploration for the global good.
Topics: Space and Aeronautics » Space Exploration and Development | Space and Aeronautics » Space Systems and Hardware
The Space Studies Board (SSB) was established in 1958 to serve as the focus of the interests and responsibilities in space research for the National Academies. The SSB provides an independent, authoritative forum for information and advice on all aspects of space science and applications, and it serves as the focal point within the National Academies for activities on space research. It oversees advisory studies and program assessments, facilitates international research coordination, and promotes communications on space science and science policy between the research community, the federal government, and the interested public. The SSB also serves as the U.S. National Committee for the International Council for Science Committee on Space Research (COSPAR).
This volume reviews the organization, activities, and reports of the SSB for the year 2010.
Topics: Space and Aeronautics » Policy, Reviews and Evaluations
Astronomy has as its domain the study of the celestial bodies—the sun, planets, stars, clouds of gas between the stars, galaxies—and undeniably the entire universe considered as a single system. Astronomy's goal is to learn the nature of these diverse objects and to relate their properties, their motions, and their distribution in space in a unified world picture; to understand the evolutionary development of the universe from the time of its formation to the present epoch of observation and beyond; and indeed to discover, if possible, its original state and its final destiny.
Emphasizing astronomy as a pure science, this report presents the challenges scientists and the government face in regards to radio and optical astronomical programs. Ground-based Astronomy: A Ten-Year Program explores a balanced course for new facilities of ground-based astronomy in the next decade, and provides recommendations to create a progressive program that considers a wide spectrum of past inadequacies and future growth components. Outlining guiding principles and estimates of facility costs, Ground-based Astronomy examines present positions in research and development to further advancement of astronomy in various sectors.
Topics: Space and Aeronautics » Astronomy and Astrophysics
Every 10 years the National Research Council releases a survey of astronomy and astrophysics outlining priorities for the coming decade. The most recent survey, titled New Worlds, New Horizons in Astronomy and Astrophysics, provides overall priorities and recommendations for the field as a whole based on a broad and comprehensive examination of scientific opportunities, infrastructure, and organization in a national and international context.
Panel Reports—New Worlds, New Horizons in Astronomy and Astrophysics is a collection of reports, each of which addresses a key sub-area of the field, prepared by specialists in that subarea, and each of which played an important role in setting overall priorities for the field. The collection, published in a single volume, includes the reports of the following panels:
The Committee for a Decadal Survey of Astronomy and Astrophysics synthesized these reports in the preparation of its prioritized recommendations for the field as a whole. These reports provide additional depth and detail in each of their respective areas. Taken together, they form an essential companion volume to New Worlds, New Horizons: A Decadal Survey of Astronomy and Astrophysics. The book of panel reports will be useful to managers of programs of research in the field of astronomy and astrophysics, the Congressional committees with jurisdiction over the agencies supporting this research, the scientific community, and the public.
Topics: Space and Aeronautics » Astronomy and Astrophysics | Space and Aeronautics » Space Exploration and Development
This volume highlights the papers presented at the National Academy of Engineering's 2010 U.S. Frontiers of Engineering Symposium. Every year, the symposium brings together 100 outstanding young leaders in engineering to share their cutting-edge research and technical work. The 2010 symposium was held September 23 - 25, and hosted by IBM at the IBM Learning Center in Armonk, New York. Speakers were asked to prepare extended summaries of their presentations, which are reprinted here. The intent of this book is to convey the excitement of this unique meeting and to highlight cutting-edge developments in engineering research and technical work.
Topics: Space and Aeronautics » Space Exploration and Development | Engineering and Technology » Construction: Design, Research, Planning
Driven by discoveries, and enabled by leaps in technology and imagination, our understanding of the universe has changed dramatically during the course of the last few decades. The fields of astronomy and astrophysics are making new connections to physics, chemistry, biology, and computer science. Based on a broad and comprehensive survey of scientific opportunities, infrastructure, and organization in a national and international context, New Worlds, New Horizons in Astronomy and Astrophysics outlines a plan for ground- and space- based astronomy and astrophysics for the decade of the 2010's.
Realizing these scientific opportunities is contingent upon maintaining and strengthening the foundations of the research enterprise including technological development, theory, computation and data handling, laboratory experiments, and human resources. New Worlds, New Horizons in Astronomy and Astrophysics proposes enhancing innovative but moderate-cost programs in space and on the ground that will enable the community to respond rapidly and flexibly to new scientific discoveries. The book recommends beginning construction on survey telescopes in space and on the ground to investigate the nature of dark energy, as well as the next generation of large ground-based giant optical telescopes and a new class of space-based gravitational observatory to observe the merging of distant black holes and precisely test theories of gravity.
New Worlds, New Horizons in Astronomy and Astrophysics recommends a balanced and executable program that will support research surrounding the most profound questions about the cosmos. The discoveries ahead will facilitate the search for habitable planets, shed light on dark energy and dark matter, and aid our understanding of the history of the universe and how the earliest stars and galaxies formed. The book is a useful resource for agencies supporting the field of astronomy and astrophysics, the Congressional committees with jurisdiction over those agencies, the scientific community, and the public.
Topics: Space and Aeronautics » Astronomy and Astrophysics | Space and Aeronautics » Space Exploration and Development
The Space Studies Board (SSB) was established in 1958 to serve as the focus of the interests and responsibilities in space research for the National Academies. The SSB provides an independent, authoritative forum for information and advice on all aspects of space science and applications, and it serves as the focal point within the National Academies for activities on space research. It oversees advisory studies and program assessments, facilitates international research coordination, and promotes communications on space science and science policy between the research community, the federal government, and the interested public. The SSB also serves as the U.S. National Committee for the International Council for Science Committee on Space Research (COSPAR).
The present volume reviews the organization, activities, and reports of the SSB for the year 2009.
Topics: Space and Aeronautics » Policy, Reviews and Evaluations
Detailed weather observations on local and regional levels are essential to a range of needs from forecasting tornadoes to making decisions that affect energy security, public health and safety, transportation, agriculture and all of our economic interests. As technological capabilities have become increasingly affordable, businesses, state and local governments, and individual weather enthusiasts have set up observing systems throughout the United States. However, because there is no national network tying many of these systems together, data collection methods are inconsistent and public accessibility is limited. This book identifies short-term and long-term goals for federal government sponsors and other public and private partners in establishing a coordinated nationwide "network of networks" of weather and climate observations.
Topics: Earth Sciences » Climate, Weather and Meteorology | Space and Aeronautics » Space Systems and Hardware
Topics: Space and Aeronautics » Policy, Reviews and Evaluations | Policy for Science and Technology » Policy for Science and Technology
Topics: Math, Chemistry, and Physics » Physics | Space and Aeronautics » Astronomy and Astrophysics
Natural and human-induced changes in Earth's interior, land surface, biosphere, atmosphere, and oceans affect all aspects of life. Understanding these changes requires a range of observations acquired from land-, sea-, air-, and space-based platforms. To assist NASA, NOAA, and USGS in developing these tools, the NRC was asked to carry out a "decadal strategy" survey of Earth science and applications from space that would develop the key scientific questions on which to focus Earth and environmental observations in the period 2005-2015 and beyond, and present a prioritized list of space programs, missions, and supporting activities to address these questions. This report presents a vision for the Earth science program; an analysis of the existing Earth Observing System and recommendations to help restore its capabilities; an assessment of and recommendations for new observations and missions for the next decade; an examination of and recommendations for effective application of those observations; and an analysis of how best to sustain that observation and applications system.
Topics: Earth Sciences » Climate, Weather and Meteorology | Space and Aeronautics » Space Systems and Hardware | Earth Sciences » Geography and Mapping
Topics: Space and Aeronautics » Aircraft and Flight | Engineering and Technology » Applications of Technology
The United States and the former Soviet Union have sent spacecraft to mars as early as 1966, with Mars' exploration being priority for NASA spacecraft. Both sides, however, have failed as well as succeed. The inability to determine if life exists on Mars is considered one of NASA's failures and undercut political support for additional Mars missions in the U.S. until the launch of the Mars Observer in 1992. Thus, the exploration of life on Mars continues, but with a new approach.
Assessment of NASA's Mars Architecture, 2007-2016 is an assessment by the Committee to Review the Next Decade Mars Architecture of the National Research Council (NRC) conducted by request of Dr. Mary Cleave, NASA's Associate Administrator for the Science Mission Directorate. The Committee addresses the following questions: Is the Mars architecture reflective of the strategies, priorities, and guidelines put forward by the National Research Council's solar system exploration decadal survey and related science strategies and NASA plans?, Does the revised Mars architecture address the goals of NASA's Mars Exploration Program and optimize the science return, given the current fiscal posture of the program?, and Does the Mars architecture represent a reasonably balanced mission portfolio?
After several months of study, consideration and incorporation of the guidance from NRC studies, especially New Frontiers in the Solar System, and the Vision for Space Exploration; community consultations via individual inputs; and a MEPAG-sponsored working group, a plan was created. This report includes the plan, which has an Astrobiology Field Laboratory or two Mild Rovers mission planned for 2016, recommendations from the committee, NRC guidelines for mars exploration, and more.
Topics: Space and Aeronautics » Policy, Reviews and Evaluations | Space and Aeronautics » Space Exploration and Development
Topics: Space and Aeronautics » Space Exploration and Development | Space and Aeronautics » Policy, Reviews and Evaluations
Topics: Space and Aeronautics » Space Exploration and Development | Space and Aeronautics » Policy, Reviews and Evaluations
Autonomous vehicles (AVs) have been used in military operations for more than 60 years, with torpedoes, cruise missiles, satellites, and target drones being early examples.1 They have also been widely used in the civilian sector—for example, in the disposal of explosives, for work and measurement in radioactive environments, by various offshore industries for both creating and maintaining undersea facilities, for atmospheric and undersea research, and by industry in automated and robotic manufacturing.
Recent military experiences with AVs have consistently demonstrated their value in a wide range of missions, and anticipated developments of AVs hold promise for increasingly significant roles in future naval operations. Advances in AV capabilities are enabled (and limited) by progress in the technologies of computing and robotics, navigation, communications and networking, power sources and propulsion, and materials.
Autonomous Vehicles in Support of Naval Operations is a forward-looking discussion of the naval operational environment and vision for the Navy and Marine Corps and of naval mission needs and potential applications and limitations of AVs. This report considers the potential of AVs for naval operations, operational needs and technology issues, and opportunities for improved operations.
Topics: Conflict and Security Issues » Military and Defense Studies | Space and Aeronautics » Aircraft and Flight
Exciting new observational and theoretical advances lead today's solar physicists to challenge many of the predictions of even recent models. This volume summarizes the major questions at the forefront of solar physics theory and observations, and proposes priority recommendations to explore these questions. The study also addresses serious institutional issues that have beset solar physics including the role of the universities in the national solar observations, structural barriers to careers in solar physics, and the leadership role of the federal funding agencies for ground-based solar research.
Topics: Space and Aeronautics » Astronomy and Astrophysics
Plasma science is the study of ionized states of matter. This book discusses the field's potential contributions to society and recommends actions that would optimize those contributions. It includes an assessment of the field's scientific and technological status as well as a discussion of broad themes such as fundamental plasma experiments, theoretical and computational plasma research, and plasma science education.
Topics: Space and Aeronautics » Astronomy and Astrophysics | Math, Chemistry, and Physics » Physics
U.S.-European Collaboration in Space Science reviews the past 30 years of space-based research across the Atlantic. The book, which was prepared jointly with the European Space Science Committee (under the aegis of the European Science Foundation) begins with a broad survey of the historical and political context of U.S.-European cooperation and collaboration in space.
The focus of the book is a set of 13 U.S.-European missions in astrophysics, space physics, planetary sciences, earth sciences, and life and microgravity research that illustrate "lessons learned" on the evolution of the cooperation, mission planning and scheduling, international agreements, cost-sharing, management, and scientific output.
These lessons form the basis of the joint committee's findings and recommendations, which serve to improve the future conduct and enhance the scientific output of U.S.-European cooperation and collaboration in space science.
Topics: Space and Aeronautics » Space Exploration and Development | Space and Aeronautics » Policy, Reviews and Evaluations
Since the beginning of space flight, the collision hazard in Earth orbit has increased as the number of artificial objects orbiting the Earth has grown. Spacecraft performing communications, navigation, scientific, and other missions now share Earth orbit with spent rocket bodies, nonfunctional spacecraft, fragments from spacecraft breakups, and other debris created as a byproduct of space operations. Orbital Debris examines the methods we can use to characterize orbital debris, estimates the magnitude of the debris population, and assesses the hazard that this population poses to spacecraft. Potential methods to protect spacecraft are explored. The report also takes a close look at the projected future growth in the debris population and evaluates approaches to reducing that growth. Orbital Debris offers clear recommendations for targeted research on the debris population, for methods to improve the protection of spacecraft, on methods to reduce the creation of debris in the future, and much more.
Topics: Space and Aeronautics » Space Systems and Hardware | Space and Aeronautics » Space Exploration and Development
The third in a series of sector-specific assessments of U.S.-Japan technology linkages, this book examines U.S.-Japan relationships that develop or transfer aircraft technology, the motivations of participating organizations, and the impacts on U.S. and Japanese capabilities. Incorporating detailed accounts of the business and technology aspects of U.S.-Japan aircraft alliances, the volume also describes the U.S. and Japanese policy contexts, presents alternative scenarios for the future and outlines how linkages with Japan can be leveraged as part of a strategy to reenergize U.S. leadership in this critical industry.
Topics: Space and Aeronautics » Aircraft and Flight
The National Aeronautics and Space Administration (NASA) is currently developing advanced technologies to form the foundation for the next breakthrough in civil aviation: an economically viable, environmentally acceptable supersonic transport. NASA's High Speed Research Program works in conjunction with industry to identify and address critical technological challenges to initiating commercial development of a practical supersonic transport. The key technical areas investigated are engine emissions, fuel efficiency, service life, and weight; community noise; aircraft range and payload; and weight and service life of airframe structures. Areas of particular interest include the ability of technologies under development to meet program goals related to noise, emissions, service life, weight, range, and payload. This book examines aircraft design requirements, assesses the program's planning and progress, and recommends changes that will help the program achieve its overall objectives.
Topics: Space and Aeronautics » Aircraft and Flight
Mercury is widespread in our environment. Methylmercury, one organic form of mercury, can accumulate up the aquatic food chain and lead to high concentrations in predatory fish. When consumed by humans, contaminated fish represent a public health risk.
Combustion processes, especially coal-fired power plants, are major sources of mercury contamination in the environment. The U.S. Environmental Protection Agency (EPA) is considering regulating mercury emissions from those plants.
Toxicological Effects of Methylmercury reviews the health effects of methylmercury and discusses the estimation of mercury exposure from measured biomarkers, how differences between individuals affect mercury toxicity, and appropriate statistical methods for analysis of the data and thoroughly compares the epidemiological studies available on methylmercury. Included are discussions of current mercury levels on public health and a delineation of the scientific aspects and policy decisions involved in the regulation of mercury.
This report is a valuable resource for individuals interested in the public health effects and regulation of mercury. The report also provides an excellent example of the implications of decisions in the risk assessment process for a larger audience.
Topics: Environment and Environmental Studies » Pollutants and Toxics | Space and Aeronautics » Aircraft and Flight
Topics: Space and Aeronautics » Space Exploration and Development | Space and Aeronautics » Astronomy and Astrophysics
One of the highest-priority activities in the planetary sciences identified in published reports of the Space Studies Board's Committee on Planetary and Lunar Exploration (COMPLEX) and in reports of other advisory groups is the collection and return of extraterrestrial samples to Earth for study in terrestrial laboratories. In response to recommendations made in such studies, NASA has initiated a vigorous program that will, within the next decade, collect samples from a variety of solar system environments. In particular the Mars Exploration Program is expected to launch spacecraft that are designed to collect samples of martian soil, rocks, and atmosphere and return them to Earth, perhaps as early as 2015.
International treaty obligations mandate that NASA conduct such a program in a manner that avoids the cross-contamination of both Earth and Mars. The Space Studies Board's 1997 report Mars Sample Return: Issues and Recommendations examined many of the planetary-protection issues concerning the back contamination of Earth and concluded that, although the probability that martian samples will contain dangerous biota is small, it is not zero.1 Steps must be taken to protect Earth against the remote possibility of contamination by life forms that may have evolved on Mars. Similarly, the samples, collected at great expense, must be protected against contamination by terrestrial biota and other matter. Almost certainly, meeting these requirements will entail opening the sample-return container in an appropriate facility on Earth-presumably a BSL-4 laboratory-where testing, biosafety certification, and quarantine of the samples will be carried out before aliquots are released to the scientific community for study in existing laboratory facilities. The nature of the required quarantine facility, and the decisions required for disposition of samples once they are in it, were regarded as issues of sufficient importance and complexity to warrant a study by the Committee on Planetary and Lunar Exploration (COMPLEX) in isolation from other topics. (Previous studies have been much broader, including also consideration of the mission that collects samples on Mars and brings them to Earth, atmospheric entry, sample recovery, and transport to the quarantine facility.) The charge to COMPLEX stated that the central question to be addressed in this study is the following: What are the criteria that must be satisfied before martian samples can be released from a quarantine facility?
Topics: Space and Aeronautics » Policy, Reviews and Evaluations | Space and Aeronautics » Space Exploration and Development
In its fiscal year 2002 budget summary document the Bush administration expressed concern—based in part on the findings and conclusions of two National Research Council studies—about recent trends in the federal funding of astronomy and astrophysics research. The President's budget blueprint suggested that now is the time to address these concerns and directed the National Science Foundation (NSF) and the National Aeronautics and Space Administration (NASA) to establish a blue ribbon panel to (1) assess the organizational effectiveness of the federal research enterprise in astronomy and astrophysics, (2) consider the pros and cons of transferring NSF's astronomy responsibilities to NASA, and (3) suggest alternative options for addressing issues in the management and organization of astronomical and astrophysical research. NASA and NSF asked the National Research Council to carry out the rapid assessment requested by the President. This report, focusing on the roles of NSF and NASA, provides the results of that assessment.
Topics: Space and Aeronautics » Astronomy and Astrophysics | Space and Aeronautics » Policy, Reviews and Evaluations
Each new generation of commercial aircraft produces less noise and fewer emissions per passenger-kilometer (or ton-kilometer of cargo) than the previous generation. However, the demand for air transportation services grows so quickly that total aircraft noise and emissions continue to increase. Meanwhile, federal, state, and local noise and air quality standards in the United States and overseas have become more stringent. It is becoming more difficult to reconcile public demand for inexpensive, easily accessible air transportation services with concurrent desires to reduce noise, improve local air quality, and protect the global environment against climate change and depletion of stratospheric ozone. This situation calls for federal leadership and strong action from industry and government.
U.S. government, industry, and universities conduct research and develop technology that could help reduce aircraft noise and emissions-but only if the results are used to improve operational systems or standards. For example, the (now terminated) Advanced Subsonic Technology Program of the National Aeronautics and Space Administration (NASA) generally brought new technology only to the point where a system, subsystem model, or prototype was demonstrated or could be validated in a relevant environment. Completing the maturation process-by fielding affordable, proven, commercially available systems for installation on new or modified aircraft-was left to industry and generally took place only if industry had an economic or regulatory incentive to make the necessary investment. In response to this situation, the Federal Aviation Administration, NASA, and the Environmental Protection Agency, asked the Aeronautics and Space Engineering Board of the National Research Council to recommend research strategies and approaches that would further efforts to mitigate the environmental effects (i.e., noise and emissions) of aviation. The statement of task required the Committee on Aeronautics Research and Technology for Environmental Compatibility to assess whether existing research policies and programs are likely to foster the technological improvements needed to ensure that environmental constraints do not become a significant barrier to growth of the aviation sector.
Topics: Space and Aeronautics » Aircraft and Flight
Topics: Space and Aeronautics » Policy, Reviews and Evaluations
Topics: Space and Aeronautics » Astronomy and Astrophysics | Space and Aeronautics » Space Exploration and Development
As part of its ongoing commitment to the nation's space program, NASA's medical leadership asked the Institute of Medicine (IOM) to review specific aspects of the scientific basis, policies, and procedures associated with the Longitudinal Study of Astronaut Health (LSAH). NASA created the LSAH in 1992 to address a variety of issues, including both the health of astronauts during space flight and the longer-term health issues that might be associated with space flight and flight training.
Topics: Space and Aeronautics » Policy, Reviews and Evaluations | Space and Aeronautics » Space Exploration and Development
Topics: Space and Aeronautics » Space Exploration and Development | Conflict and Security Issues » Prevention, Security and Response
During the past decade, the field of astrophysics has progressed at an impressive rate. This was reflected by the topics discussed at the workshop from which this book eminated. These topics include the inflationary universe; the large-scale structure of the universe; the diffuse X-ray background; gravitational lenses, quasars and active galactic nuclei; infrared galaxies; results from infrared astronomical satellites; supernova 1987A; millisecond radio pulsars; quasi-periodic oscillations in the X-ray flux of low-mass X-ray binaries; and gamma-ray bursts.
Topics: Space and Aeronautics » Astronomy and Astrophysics
The report summarizes a conference, Conference on Fire and Smoke Resistant Materials, convened at the National Academy of Sciences on November 8-10, 1994. Conference participants identified trends in aircraft fire safety and suggested promising research directions for the Federal Aviation Administration's (FAA) program in smoke and fire-resistant materials. These papers served as background for workshop sessions in (1) toxicity issues, (2) fire performance parameters, (3) drivers for materials development, and (4) new materials technology. Each workshop session discussed the current state of development, technological needs, and promising technology for future development.
Topics: Space and Aeronautics » Aircraft and Flight | Environment and Environmental Studies » Pollutants and Toxics
Many of the aircraft that form the backbone of the U.S. Air Force operational fleet are 25 years old or older. A few of these will be replaced with new aircraft, but many are expected to remain in service an additional 25 years or more. This book provides a strategy to address the technical needs and priorities associated with the Air Force's aging airframe structures. It includes a detailed summary of the structural status of the aging force, identification of key technical issues, recommendations for near-term engineering and management actions, and prioritized near-term and long-term research recommendations.
Topics: Space and Aeronautics » Aircraft and Flight | Engineering and Technology » Applications of Technology
This book reviews the U.S. National Aeronautics and Space Administration's (NASA) small spacecraft technology development. Included are assessments of NASA's technology priorities for relevance to small spacecraft and identification of technology gaps and overlaps.
The volume also examines the small spacecraft technology programs of other government agencies and assesses technology efforts in industry.
Topics: Engineering and Technology » Applications of Technology | Space and Aeronautics » Space Systems and Hardware
In spite of its high cost and technical importance, plasma equipment is still largely designed empirically, with little help from computer simulation. Plasma process control is rudimentary. Optimization of plasma reactor operation, including adjustments to deal with increasingly stringent controls on plant emissions, is performed predominantly by trial and error. There is now a strong and growing economic incentive to improve on the traditional methods of plasma reactor and process design, optimization, and control. An obvious strategy for both chip manufacturers and plasma equipment suppliers is to employ large-scale modeling and simulation. The major roadblock to further development of this promising strategy is the lack of a database for the many physical and chemical processes that occur in the plasma. The data that are currently available are often scattered throughout the scientific literature, and assessments of their reliability are usually unavailable.
Database Needs for Modeling and Simulation of Plasma Processing identifies strategies to add data to the existing database, to improve access to the database, and to assess the reliability of the available data. In addition to identifying the most important needs, this report assesses the experimental and theoretical/computational techniques that can be used, or must be developed, in order to begin to satisfy these needs.
Topics: Math, Chemistry, and Physics » Policy, Reviews and Evaluations | Space and Aeronautics » Astronomy and Astrophysics
For the past three decades, it has been possible to measure the earth's static gravity from satellites. Such measurements have been used to address many important scientific problems, including the earth's internal structure, and geologically slow processes like mantle convection. In principle, it is possible to resolve the time-varying component of the gravity field by improving the accuracy of satellite gravity measurements.
These temporal variations are caused by dynamic processes that change the mass distribution in the earth, oceans, and atmosphere. Acquisition of improved time-varying gravity data would open a new class of important scientific problems to analysis, including crustal motions associated with earthquakes and changes in groundwater levels, ice dynamics, sea-level changes, and atmospheric and oceanic circulation patterns.
This book evaluates the potential for using satellite technologies to measure the time-varying component of the gravity field and assess the utility of these data for addressing problems of interest to the earth sciences, natural hazards, and resource communities.
Topics: Earth Sciences » Geology and Landforms | Space and Aeronautics » Space Systems and Hardware
U.S. Air Force (USAF) planners have envisioned that uninhabited air vehicles (UAVs), working in concert with inhabited vehicles, will become an integral part of the future force structure. Current plans are based on the premise that UAVs have the potential to augment, or even replace, inhabited aircraft in a variety of missions. However, UAV technologies must be better understood before they will be accepted as an alternative to inhabited aircraft on the battlefield. The U.S. Air Force Office of Scientific Research (AFOSR) requested that the National Research Council, through the National Materials Advisory Board and the Aeronautics and Space Engineering Board, identify long-term research opportunities for supporting the development of technologies for UAVs. The objectives of the study were to identify technological developments that would improve the performance and reliability of "generation-after-next" UAVs at lower cost and to recommend areas of fundamental research in materials, structures, and aeronautical technologies. The study focused on innovations in technology that would "leapfrog" current technology development and would be ready for scaling-up in the post-2010 time frame (i.e., ready for use on aircraft by 2025).
Topics: Space and Aeronautics » Aircraft and Flight | Conflict and Security Issues » Military and Defense Studies
This volume presents a materials research agenda for the commercial aircraft and automobile industries for the next two decades. Two case studies are used as a basis for discussion: the 50-mile-per-gallon, 5-passenger sedan and the high-speed civil transport. Also identified are those general materials drivers and the materials research required for each field.
Topics: Engineering and Technology » Materials | Space and Aeronautics » Aircraft and Flight
This book contains the proceedings from a workshop on planetary sciences sponsored by the Academy of Sciences of the USSR and the National Academy of Sciences. The proceedings include papers written by American and Soviet scientists who examine the current theoretical understanding of how the planets were formed and how they evolved to their present state. They assess the type of observations and experiments that are needed to advance understanding of the formation and evolution of the solar system based on the current theoretical framework.
Topics: Space and Aeronautics » Astronomy and Astrophysics
In March 2000, NASA's Office of Space Flight asked the Aeronautics and Space Engineering Board of the National Research Council to perform an independent assessment of the space solar power program's technology investment strategy to determine its technical soundness and its contribution to the roadmap that NASA has developed for this program. The program's investment strategy was to be evaluated in the context of its likely effectiveness in meeting the program's technical and economic objectives.
Topics: Space and Aeronautics » Space Exploration and Development | Space and Aeronautics » Space Systems and Hardware
The past decade has seen a remarkable revolution in genomic research, the discoveries of extreme environments in which organisms can live and even flourish on Earth, the identification of past and possibly present liquid-water environments in our solar system, and the detection of planets around other stars. Together these accomplishments bring us much closer to understanding the origin of life, its evolution and diversification on Earth, and its occurrence and distribution in the cosmos. A new multidisciplinary program called Astrobiology was initiated in 1997 by the National Aeronautics and Space Administration (NASA) to foster such research and to make available additional resources for individual and consortium-based efforts. Other agencies have also begun new programs to address the origin, evolution, and cosmic distribution of life. Five years into the Astrobiology program, it is appropriate to assess the scientific and programmatic impacts of these initiatives. Edward J. Weiler, NASA's associate administrator for the Office of Space Science, tasked the Committee on the Origins and Evolution of Life (COEL) with assessing the state of NASA's Astrobiology program.
Topics: Space and Aeronautics » Astronomy and Astrophysics | Space and Aeronautics » Policy, Reviews and Evaluations
Topics: Earth Sciences » Climate, Weather and Meteorology | Space and Aeronautics » Aircraft and Flight
The Committee for the Review of NASA's Pioneering Revolutionary Technology (PRT) Program and its three supporting panels were charged by the National Aeronautics and Space Administration (NASA) with assessing the overall scientific and technical quality of the PRT program and its component programs, along with their associated elements and individual research tasks. Major issues addressed in the review include (1) research portfolios, (2) research plans, (3) technical community connections, (4) methodologies, and (5) overall capabilities. As reflected in the organization of the report, a two-pronged assessment was developed. Each panel provided a detailed assessment of the program under its purview, which was refined and updated over the course of the review. The committee, composed mainly of representatives from each panel, integrated and evaluated the panel results and provided top-level advice on issues cutting across the entire PRT program.
Topics: Space and Aeronautics » Policy, Reviews and Evaluations | Space and Aeronautics » Space Exploration and Development
Topics: Earth Sciences » Geography and Mapping | Space and Aeronautics » Space Exploration and Development
Topics: Space and Aeronautics » Space Exploration and Development | Space and Aeronautics » Astronomy and Astrophysics
The Live Fire Test Law mandates realistic survivability and lethality testing of covered systems or programs. A provision of the law permits the Secretary of Defense to waive tests if live fire testing would be "unreasonably expensive and impractical." Though no waiver was requested before the F-22 program entered engineering and manufacturing development, the Defense Department later asked that Congress enact legislation to permit a waiver to be granted retroactively. Rather than enact such legislation, Congress requested a study to explore the pros and cons of full-scale, full-up testing for the F-22 aircraft program. The book discusses the origin of testing requirements, evaluates the practicality, affordability, and cost-benefit of live fire tests, and examines the role of testing, modeling, and data bases in vulnerability assessment.
Topics: Conflict and Security Issues » Military and Defense Studies | Space and Aeronautics » Aircraft and Flight
In this new book, a distinguished panel makes recommendations for the nation's programs in astronomy and astrophysics, including a number of new initiatives for observing the universe. With the goal of optimum value, the recommendations address the role of federal research agencies, allocation of funding, training for scientists, competition and collaboration among space facilities, and much more.
The book identifies the most pressing science questions and explains how specific efforts, from the Next Generation Space Telescope to theoretical studies, will help reveal the answers. Discussions of how emerging information technologies can help scientists make sense of the wealth of data available are also included.
Astronomy has significant impact on science in general as well as on public imagination. The committee discusses how to integrate astronomical discoveries into our education system and our national life.
In preparing the New Millennium report, the AASC made use of a series of panel reports that address various aspects of ground- and space-based astronomy and astrophysics. These reports provide in-depth technical detail.
Astronomy and Astrophysics in the New Millenium: An Overview summarizes the science goals and recommended initiatives in a short, richly illustrated, non-technical booklet.
Topics: Space and Aeronautics » Astronomy and Astrophysics
The reduction of the fire hazard of fuel is critical to improving survivability in impact-survivable aircraft accidents. Despite current fire prevention and mitigation approaches, fuel flammability can overwhelm post-crash fire scenarios. The Workshop on Aviation Fuels with Improved Fire Safety was held November 19-20, 1996 to review the current state of development, technological needs, and promising technology for the future development of aviation fuels that are most resistant to ignition during a crash. This book contains a summary of workshop discussions and 11 presented papers in the areas of fuel and additive technologies, aircraft fuel system requirements, and the characterization of fuel fires.
Topics: Space and Aeronautics » Aircraft and Flight | Environment and Environmental Studies » Pollutants and Toxics
Prepared at the request of NASA, Aeronautical Technologies for the Twenty-First Century presents steps to help prevent the erosion of U.S. dominance in the global aeronautics market.
The book recommends the immediate expansion of research on advanced aircraft that travel at subsonic speeds and research on designs that will meet expected future demands for supersonic and short-haul aircraft, including helicopters, commuter aircraft, "tiltrotor," and other advanced vehicle designs.
These recommendations are intended to address the needs of improved aircraft performance, greater capacity to handle passengers and cargo, lower cost and increased convenience of air travel, greater aircraft and air traffic management system safety, and reduced environmental impacts.
Topics: Space and Aeronautics » Space Systems and Hardware
Adverse aircraft-pilot coupling (APC) events include a broad set of undesirable and sometimes hazardous phenomena that originate in anomalous interactions between pilots and aircraft. As civil and military aircraft technologies advance, interactions between pilots and aircraft are becoming more complex. Recent accidents and other incidents have been attributed to adverse APC in military aircraft. In addition, APC has been implicated in some civilian incidents.
This book evaluates the current state of knowledge about adverse APC and processes that may be used to eliminate it from military and commercial aircraft. It was written for technical, government, and administrative decisionmakers and their technical and administrative support staffs; key technical managers in the aircraft manufacturing and operational industries; stability and control engineers; aircraft flight control system designers; research specialists in flight control, flying qualities, human factors; and technically knowledgeable lay readers.
Topics: Transportation and Infrastructure » Data and Information Technology | Space and Aeronautics » Aircraft and Flight
Safe Passage: Astronaut Care for Exploration Missions sets forth a vision for space medicine as it applies to deep space voyage. As space missions increase in duration from months to years and extend well beyond Earth's orbit, so will the attendant risks of working in these extreme and isolated environmental conditions. Hazards to astronaut health range from greater radiation exposure and loss of bone and muscle density to intensified psychological stress from living with others in a confined space. Going beyond the body of biomedical research, the report examines existing space medicine clinical and behavioral research and health care data and the policies attendant to them. It describes why not enough is known today about the dangers of prolonged travel to enable humans to venture into deep space in a safe and sane manner. The report makes a number of recommendations concerning NASA's structure for clinical and behavioral research, on the need for a comprehensive astronaut health care system and on an approach to communicating health and safety risks to astronauts, their families, and the public.
Topics: Space and Aeronautics » Space Exploration and Development | Space and Aeronautics » Policy, Reviews and Evaluations
Diisopropyl Methylphosphonate (DIMP) is a groundwater contaminant at the U.S. Army's Rocky Mountain Arsenal in Colorado. DIMP is a by-product created from the manufacture and detoxification of the nerve agent GB which the arsenal produced from 1953 to 1957. For awhile the Army and the State of Colorado disagreed upon the appropriate drinking-water contaminant guideline for DIMP. A drinking-water guideline of 600 micrograms per liter was established by the U.S. Environmental Protection Agency (EPA) in 1989 but the State of Colorado promulgated a lower guideline of 8 micrograms per liter. The significant difference between the two suggested values arose from the fact that both sides used different studies to determine their values. Colorado used one-generation reproductive toxicity study in mink, whereas EPA used a subchronic toxicity study in dogs.
To resolve the disagreement, a two-generation reproductive study in mink was conducted. The Army asked the National Research Council (NRC) to independently evaluate the 1997 study and re-evaluate the drinking-water guideline for DIMP. This task was assigned to the Committee on Toxicology, which established the Subcommittee on the Toxicity of Diisopropyl Methylphosphonate, a multidisciplinary group of experts. The subcommittee evaluated the two-generation reproductive study as well as other studies relevant to the task. Data on the use of mink as a predictive model in toxicology were also reviewed. Re-Evaluation of Drinking-Water Guidelines for Diisopropyl Methylphosphonate is the subcommittee's report which shows that neither party was corrected in their DIMP guidelines. The report includes the subcommittee's evaluation and recommendations concerning the topic.
Topics: Environment and Environmental Studies » Water Quality | Space and Aeronautics » Space Systems and Hardware
Few technological advances have affected the lives and dreams of individuals and the operations of companies and governments as much as the continuing development of flight. From space exploration to package transport, from military transport to passenger helicopter use, from passenger jumbo jets to tilt-rotor commuter planes, the future of flying is still rapidly developing.
The essays in this volume survey the state of progress along several fronts of this constantly evolving frontier. Five eminent authorities assess prospects for the future of rotary-wing aircraft, large passenger aircraft, commercial aviation, manned spaceflight, and defense aerospace in the post-Cold War era.
Topics: Space and Aeronautics » Aircraft and Flight
"Star Wars"—as the Strategic Defense Initiative (SDI) is dubbed—will require reliable sources of immense amounts of energy to power such advanced weapons as lasers and particle beams. Are such power sources available? This study says no, not yet—and points the way toward the kind of energy research and development that is needed to power SDI.
Advanced Power Sources for Space Missions presents a comprehensive and objective view of SDI's unprecedented power requirements and the opportunities we have to meet them in a cost-effective manner.
Topics: Space and Aeronautics » Space Systems and Hardware
The Office of Naval Research (ONR) contracted with the Naval Studies Board (NSB) of the National Research Council (NRC) to establish a committee to review ONR's Aircraft Technology Program (ATP). The committee convened on May 15 and 16, 2001, and reviewed some 28 science and technology (S&T) efforts that were presented as constituting the ATP. The committee met separately on May 17, 2001, to formulate its findings and recommendations. This report represents the consensus opinion of the committee and is based on the information presented at the review. The ONR ATP resides within the Strike Technology Division (Code 351) of the Naval Expeditionary Warfare Science and Technology Department (Code 35). In 2001 the ATP is funded at $55.0 million, which is approximately 60 percent of the Strike Technology Division budget. The ATP S&T 2001 budget is further divided into the following categories: (1) 6.1 basic research at $4.3 million, (2) 6.2 exploratory development at $18.1 million, and (3) 6.3 advanced development, including technology demonstrations, at $32.5 million. However, the ATP will be in major transition beginning in FY02.
Starting in FY02, all of the 6.3 funding and one-half of the 6.2 funding at the ONR will be dedicated to 12 major program areas referred to as Future Naval Capabilities (FNCs). The purpose of the FNCs is to focus advanced technology development at ONR on naval force capabilities that have been identified as high priority for the future by a cross-functional group of naval operators, naval development and support organizations, and ONR program managers. Plans have been made to integrate several of the Code 351 programs reviewed into FNCs. The ATP was presented to the committee in six thrust areas: integrated avionics, propulsion and power, air vehicle technology, unmanned aerial vehicles/unmanned combat air vehicles (UAVs/UCAVs), survivability, and special aviation projects. Several projects were presented within each thrust area. The committee organized this report in response to these thrust areas, and in several of these areas it also suggests new S&T topics for consideration for the future ATP. The findings and recommendations of the committee are summarized in this report.
Topics: Space and Aeronautics » Aircraft and Flight | Space and Aeronautics » Policy, Reviews and Evaluations
While the accomplishments of the past decade have answered important questions about the physics of the Sun, the interplanetary medium, and the space environments of Earth and other solar system bodies, they have also highlighted other questions, some of which are long-standing and fundamental. The Sun to the Earth—and Beyond organizes these questions in terms of five challenges that are expected to be the focus of scientific investigations in solar and space physics during the coming decade and beyond.
Topics: Space and Aeronautics » Policy, Reviews and Evaluations | Space and Aeronautics » Astronomy and Astrophysics
After the Challenger accident on January 28, 1986, President Reagan established the Presidential Commission on the Space Shuttle Challenger Accident to investigate the accident and make recommendations for the safe recovery of the Space Transportation System (STS). Among its recommendations, the Commission called upon NASA to review certain aspects of its STS risk assessment effort and to identify items that needed improvement. It further recommended that an audit panel be appointed by the National Research Council to verify the adequacy of the effort.
Post-Challenger Evaluation of Space Shuttle Risk Assessment and Management is the compilation of the conclusions and recommendations of the Committee on Shuttle Criticality Review and Hazard Analysis Audit. It is intended to assist NASA in taking the prudent additional steps which will provide a reasonable and responsible level of flight safety for the Space Shuttle, but has broader applications for other space programs.
Topics: Space and Aeronautics » Policy, Reviews and Evaluations | Space and Aeronautics » Space Systems and Hardware
As recently as the summer of 2001, many travelers were dreading air transportation because of extensive delays associated with undercapacity of the system. That all changed on 9/11, and demand for air transportation has not yet returned to peak levels. Most U.S. airlines continue to struggle for survival, and some have filed for bankruptcy. The situation makes it difficult to argue that strong action is urgently needed to avert a crisis of undercapacity in the air transportation system. This report assesses the visions and goals for U.S. civil aviation and technology goals for the year 2050.
Topics: Transportation and Infrastructure » Aviation | Space and Aeronautics » Aircraft and Flight
Topics: Space and Aeronautics » Policy, Reviews and Evaluations | Conflict and Security Issues » Military and Defense Studies
Topics: Engineering and Technology » Construction: Design, Research, Planning | Space and Aeronautics » Space Exploration and Development
The safety of the nation's drinking water must be maintained to ensure the health of the public. The U.S. Environmental Protection Agency (EPA) is responsible for regulating the levels of substances in the drinking water supply. Copper can leach into drinking water from the pipes in the distribution system, and the allowable levels are regulated by the EPA. The regulation of copper, however, is complicated by the fact that it is both necessary to the normal functioning of the body and toxic to the body at too high a level.
The National Research Council was requested to form a committee to review the scientific validity of the EPA's maximum contaminant level goal for copper in drinking water. Copper in Drinking Water outlines the findings of the committee's review. The book provides a review of the toxicity of copper as well as a discussion of the essential nature of this metal. The risks posed by both short-term and long-term exposure to copper are characterized, and the implications for public health are discussed. This book is a valuable reference for individuals involved in the regulation of water supplies and individuals interested in issues surrounding this metal.
Topics: Environment and Environmental Studies » Water Quality | Space and Aeronautics » Space Systems and Hardware
Advancing technology and improved scientific understanding have propelled the atmospheric sciences from a fledging discipline to a global enterprise that contributes to safety and vitality in a broad range of public and private endeavors. Integrating a comprehensive assessment of the atmospheric sciences with a vision for the future, this book links progress in science with needs for atmospheric information.
Aimed at federal authorities, the private sector, and the scientific and education communities, this book identifies imperatives in atmospheric observations, recommends directions for research, and examines issues related to research priorities and management of the discipline and its services to the nation.
In a detailed look at five subdisciplines—atmospheric physics, atmospheric chemistry, dynamics and weather forecasting, upper atmosphere and near-earth space physics, climate and climate change—this book offers research priorities and recommendations to guide the science as it enters the twenty-first century.
Topics: Earth Sciences » Climate, Weather and Meteorology | Space and Aeronautics » Space Systems and Hardware
NASA's long-range plans include possible human exploratory missions to the moon and Mars within the next quarter century. Such missions beyond low Earth orbit will expose crews to transient radiation from solar particle events as well as continuous high-energy galactic cosmic rays ranging from energetic protons with low mean linear energy transfer (LET) to nuclei with high atomic numbers, high energies, and high LET. Because the radiation levels in space are high and the missions long, adequate shielding is needed to minimize the deleterious health effects of exposure to radiation.
The knowledge base needed to design shielding involves two sets of factors, each with quantitative uncertainty—the radiation spectra and doses present behind different types of shielding, and the effects of the doses on relevant biological systems. It is only prudent to design shielding that will protect the crew of spacecraft exposed to predicted high, but uncertain, levels of radiation and biological effects. Because of the uncertainties regarding the degree and type of radiation protection needed, a requirement for shielding to protect against large deleterious, but uncertain, biological effects may be imposed, which in turn could result in an unacceptable cost to a mission. It therefore is of interest to reduce these uncertainties in biological effects and shielding requirements for reasons of mission feasibility, safety, and cost.
Topics: Space and Aeronautics » Space Exploration and Development | Environment and Environmental Studies » Environmental Health and Safety
This volume contains commissioned reviews of research on biological influences on violent or aggressive behavior. The areas reviewed include genetic contributions to the probability of violent and related behaviors; brain structure and functioning as implicated in aggressive behavior; the roles of hormonal and neurological interactions in violent behavior; the neurochemistry of violence and aggression and its implications for the management of those behaviors; and dietary influences on violent behavior.
Topics: Space and Aeronautics » Space Systems and Hardware
Advanced Technology for Human Support in Space was written in response to a request from NASA's Office of Life and Microgravity Sciences and Applications (OLMSA) to evaluate its Advanced Human Support Technology Program. This report reviews the four major areas of the program: advanced life support (ALS), environmental monitoring and control (EMC), extravehicular activities (EVA), and space human factors (SHF). The focus of this program is on long-term technology development applicable to future human long-duration space missions, such as for a hypothetical new mission to the Moon or Mars.
Topics: Space and Aeronautics » Space Systems and Hardware | Space and Aeronautics » Space Exploration and Development
Gravitational Physics assesses the achievements of the field over the past decade in both theory and experiment, identifies the most promising opportunities for research in the next decade, and describes the resources necessary to realize those opportunities. A major theme running through the opportunities is the exploration of strong gravitational fields, such as those associated with black holes.
The book, part of the ongoing decadal survey Physics in a New Era, examines topics such as gravitational waves and their detection, classical and quantum theory of strong gravitational fields, precision measurements, and astronomical observations relevant to the predictions of Einstein's theory of general relativity.
Topics: Math, Chemistry, and Physics » Physics | Space and Aeronautics » Astronomy and Astrophysics
Assessment of Mission Size Trade-offs for NASA's Earth and Space Science Missions addresses fundamental issues of mission architecture in the nation's scientific space program and responds to the FY99 Senate conference report, which requested that NASA commission a study to assess the strengths and weaknesses of small, medium, and large missions. This report evaluates the general strengths and weaknesses of small, medium, and large missions in terms of their potential scientific productivity, responsiveness to evolving opportunities, ability to take advantage of technological progress, and other factors that may be identified during the study; identifies which elements of the SSB and NASA science strategies will require medium or large missions to accomplish high-priority science objectives; and recommends general principles or criteria for evaluating the mix of mission sizes in Earth and space science programs. Assessment of Mission Size Trade-offs for NASA's Earth and Space Science Missions considers not only scientific, technological, and cost trade-offs, but also institutional and structural issues pertaining to the vigor of the research community, government-industry university partnerships, graduate student training, and the like.
Topics: Space and Aeronautics » Policy, Reviews and Evaluations | Space and Aeronautics » Space Systems and Hardware
Effective software is essential to the success and safety of the Space Shuttle, including its crew and its payloads. The on-board software continually monitors and controls critical systems throughout a Space Shuttle flight. At NASA's request, the committee convened to review the agency's flight software development processes and to recommend a number of ways those processes could be improved.
This book, the result of the committee's study, evaluates the safety, oversight, and management functions that are implemented currently in the Space Shuttle program to ensure that the software is of the highest quality possible. Numerous recommendations are made regarding safety and management procedures, and a rationale is offered for continuing the Independent Verification and Validation effort that was instituted after the Challenger Accident.
Topics: Space and Aeronautics » Policy, Reviews and Evaluations