National Academies
- What are the National Academies?
- Decadal Surveys
- Recent Reports from the Space Studies Board
- Recent Reports from the Aeronautics and Space Engineering Board
- Classic NRC Reports
What are the National Academies?
The National Academy of Sciences (NAS) was created by a law signed by President Abraham Lincoln in 1863. In 1916, the Academy established the National Research Council (NRC) as its operating arm to conduct studies upon request primarily for (and funded by) the federal government. In 1964, the NAS established the National Academy of Engineering (NAE) and, in 1970, the Institute of Medicine (IOM). From 1916-2015, reports issued by the NAS and NAE were branded as NRC reports, since it is the part of the Academies responsible for them. However, on July 1, 2015, a rebranding took place. The IOM was renamed the National Academy of Medicine, the institution as a whole is now “The National Academies of Sciences, Engineering, and Medicine,” and reports carry that nomenclature rather than NRC. The NRC still exists, but the name is used only internally. Colloquially, they are referred as “The National Academies” or NASEM.
The National Academies are non-profit organizations that are not part of the U.S. Government. However, because the original institution, the NAS, was created by law, some operations are subject to certain conditions. For example, they cannot compete for federal contracts (so all contracts must be sole-sourced) and studies are subject to Section 15 of the Federal Advisory Committee Act (FACA).
Reports are written by committees of expert volunteers from academia, industry, the government, and other organizations. Most reports are managed by one of dozens of “Boards” into which the organization is administratively divided. Most reports about the space program are issued by the Space Studies Board (SSB) or the Aeronautics and Space Engineering Board (ASEB). Those two Boards, while separate, work especially closely together and share many staff, including the Board Director (currently Colleen Hartman).
Other Boards also may be involved in space-related studies, including the Board on Physics and Astronomy, the Board on Atmospheric Sciences and Climate, the Ocean Studies Board, and the Air Force Studies Board.
A “Board” is composed of the members of the Board (which provides strategic direction for a Board’s activities), a varying number of ad hoc study committees that are created specifically to write a report on a specific topic and terminate once the study is complete, and the staff. In some cases there also may be standing committees on a particular topic or discipline. SSB has six standing committees (two joint with other Boards), while ASEB has one (joint with SSB), plus a “Space Technology Industry, Government, University Roundtable” (STIGUR). The current SSB standing committees are:
- Committee on Astronomy and Astrophysics (joint with the Board on Physics and Astronomy)
- Committee on Earth Science and Applications from Space
- Committee on Astrobiology and Planetary Science
- Committee on Solar and Space Physics
- Committee on Biological and Physical Sciences in Space (joint with the Aeronautics and Space Engineering Board)
- Committee on Planetary Protection
Decadal Surveys
What is a Decadal Survey?
One of the signature products of the SSB (and other Boards) are “Decadal Surveys.” The term Decadal Survey is derived from the fact that these studies look forward to the next 10 years (a decade) of research in a particular discipline and are performed about every 10 years. They use a community-based consensus-building process for determining priorities for research. The first Decadal Survey was for ground-based astronomy and astrophysics in 1964. Today, the astronomy and astrophysics Decadal Survey sets priorities for both ground-based and space-based research in that field. The Board on Physics and Astronomy (BPA) and the SSB jointly conduct that survey. More recently, the SSB has produced Decadal Surveys in planetary science, solar and space physics, earth science and applications from space, and biological and physical sciences in space.
Decadal Surveys are highly valued by NASA, other agencies and Congress because they represent a consensus of the researchers in a particular discipline (the “community”) as to what are the most important areas of research and the order in which specific missions should be built and, for NASA, launched. The priorities identified in a Decadal Survey are usually strictly followed, budgets permitting. In the 2008 NASA Authorization Act (P.L. 110-422), Congress directed NASA to request such studies on a periodic basis and to require that they include independent cost estimates of recommended missions and “trip-wires” or decision rules – conditions under which the priority given to a mission might be reexamined. As noted below, the 2005 NASA Authorization Act requires NASA to request “performance assessments” of how each Decadal Survey is being implemented half-way through that particular decade.
Current Versions of Decadal Surveys
- Thriving in Space: Ensuring the Future of Biological and Physical Sciences Research (2023) [A condensed version is available: A New Era in Space: Ensuring the Future of Biological and Physical Sciences Research, 2024]
- Origins ,Worlds and Life: A Decadal Strategy for Planetary Science and Astrobiology 2023-2032 (2022) [A condensed version is available: Origins, Worlds, and Life: Planetary Science and Astrobiology in the Next Decade, 2023]
- Pathways to Discovery in Astronomy and Astrophysics (2021) [A condensed version is available: Pathways to Discovery in Astronomy and Astrophysics in the 2020s, 2023]
- Thriving on Our Changing Planet: A Decadal Survey for Earth Observations from Space (2018)
- Solar and Space Physics: A Science for a Technological Society (2012) [a new edition is now in preparation]
While not a space-related study, ASEB performed a Decadal Survey for civil aeronautics research that is available here. BPA has undertaken Decadal Surveys for other disciplines under its purview that are available on its website.
“Performance Assessments” for the Decadal Surveys
In Sec. 301 of the 2005 NASA Authorization Act (P.L.109-155), Congress directed NASA to obtain external “performance assessments” for each of the NASA science divisions at 5-year intervals. In practice, these have become NRC reviews of progress towards achieving the recommendations of the respective Decadal Survey. Informally they are called “mid-term reviews” since they are undertaken approximately mid-way through the decade that was the subject of the associated Decadal Survey. Selected recent mid-term reviews are:
- Thriving on Our Changing Planet: A MidTerm Assessment of Progress Toward Implementation of the Decadal Survey (2024)
- Progress Towards Implementation of the 2013 Decadal Survey for Solar and Space Physics: A Midterm Assessment (2020)
Selected Reports from the Space Studies Board
SSB reports can be obtained for free as long as supplies last by contacting the Board at or by downloading a free PDF version from the National Academies Press website. The Board issues a great number of reports, but a selection of those that may be of particular interest (other than the Decadal Surveys above) are listed here.
- Foundations of a Healthy and Vital Research Community for NASA Science (2022)
- Planetary Protection Considerations for Missions to Solar System Small Bodies (2022)
- Evaluation of Bioburden Requirements for Mars Missions (2021)
- Planetary Protection for the Study of Lunar Volatiles (2020)
- Assessment of the Report of NASA’s Planetary Protection Independent Review Board (2020)
- Review of the Commercial Aspects of SMD’s Lunar Science and Exploration Initiative (2019)
- Planetary Protection Classification of Sample-Return Missions from the Martian Moons (2019)
- Exoplanet Science Strategy (2019)
- An Astrobiology Strategy for the Search for Life in the Universe (2019)
- CAPS Review of the Planetary Science Aspects of NASA SMD’s Lunar Science and Exploration Initiative (2019)
- CAPS Review of the Commercial Aspects of NASA SMD’s Lunar Science and Exploration (2019)
- Powering Science: NASA’s Large Strategic Science Missions (2017)
- America’s Future in Civil Space: Summary of a May 2017 Symposium. A video is also available of the entire symposium.
- The Goals, Rationales, and Definition of Planetary Protection: Interim Report
- Heliophysics Science Centers
- Extending Science: NASA’s Space Science Mission Extensions and the Senior Review Process
- Achieving Science with Cubesats: Thinking Inside the Box
- Continuity of NASA Earth Observations from Space
- Review of the MEPAG Report on Mars Special Regions (with the European Space Foundation)
- The Space Science Decadal Surveys: Lessons Learned and Best Practices
- Pathways to Exploration — Rationales and Approaches for a U.S. Program of Human Space Exploration (joint with ASEB)
- Lessons Learned in Decadal Planning in Space Science: Summary of a Workshop
- Landsat and Beyond: Sustaining and Enhancing the Nation’s Land Imaging Program
- NASA’s Strategic Direction and the Need for a National Consensus
- Solar and Space Physics: A Science for a Technological Society (Decadal Survey for solar and space physics)
- Evaluation of the Implementation of WFIRST/AFTA in the Context of New Worlds, New Horizons in Astronomy and Astrophysics
- Assessment of Planetary Protection Requirements for Spacecraft Missions to Icy Solar System Bodies
- Sharing the Adventure with the Public: The Value and Excitement of “Grand Questions” of Space Science and Exploration — Summary of a Workshop
- Forging the Future of Space Science: The Next 50 Years (lectures from a lecture series held 2007-2008 in recognition of 50 years of the International Geophysical Year and the birth of the space program)
- Defending Planet Earth: Near-Earth Object Surveys and Hazard Mitigation Strategies: Final Report (joint with the Aeronautics and Space Engineering Board)
- Near Earth Object Surveys and Hazard Mitigation Strategies: Interim Report (joint with the Aeronautics and Space Engineering Board)
- America’s Future in Space: Aligning the Civil Space Program with National Needs (joint with the Aeronautics and Space Engineering Board)
- Approaches to Future Space Cooperation and Competition in a Globalizing World: Summary of a Workshop (joint with the Aeronautics and Space Engineering Board)
- Assessment of Planetary Protection Requirements for Mars Sample Return Missions
- Radioisotope Power Systems: An Imperative for Maintaining U.S. Leadership in Space (joint with the Aeronautics and Space Engineering Board)
- Severe Space Weather Events–Understanding Societal and Economic Impacts Workshop Report
- Launching Science: Science Opportunities Provided by NASA’s Constellation System
- Science Opportunities Enabled by NASA’s Constellation System: Interim Report
- United States Civil Space Policy: Summary of a Workshop
- Opening New Frontiers in Space: Choices for the Next New Frontiers Announcement of Opportunity
- Space Science and the International Traffic in Arms Regulations: Summary of a Workshop
Selected Space-Related Reports from the Aeronautics and Space Engineering Board (ASEB)
ASEB reports can be obtained for free while supplies last by contacting the Board at aseb@nas.edu or by downloading a free PDF version from the National Academies Press website. Selected ASEB reports about the space program are listed below.
- A Midterm Assessment of Implementation of the Decadal Survey on Life and Physical Sciences Research at NASA (2017)
- America’s Future in Civil Space: Summary of a May 2017 Symposium. A video is also available of the entire symposium.
- NASA Space Technology Roadmaps and Priorities Revisited
- Pathways to Exploration–Rationale and Approaches for a U.S. Program of Human Space Exploration (joint with the Space Studies Board)
- 3D Printing in Space
- Reusable Booster System: Review and Assessment
- NASA Space Technology Roadmaps and Priorities: Restoring NASA’s Technological Edge and Paving the Way for a New Era in Space
- Continuing Kepler’s Quest: Assessing Air Force Space Command’s Astrodynamics Standards
- Preparing for the High Frontier: The Role and Training of NASA Astronauts in the Post-Space Shuttle Era
- Limiting Future Collision Risk to Spacecraft: An Assessment of NASA’s Meteoroid and Orbital Debris Programs
- Summary of a Workshop to Identify Gaps and Possible Directions for NASA’s Micrometeoroid and Orbital Debris Programs
- An Interim Report on NASA’s Technology Roadmap
- Defending Planet Earth: Near-Earth Object Surveys and Hazard Mitigation Strategies: Final Report (joint with the Space Studies Board)
- Fostering Visions for the Future: A Review of the NASA Institute for Advanced Concepts
- Near Earth Object Surveys and Hazard Mitigation Strategies: Interim Report (joint with the Space Studies Board)
- America’s Future in Space: Aligning the Civil Space Program with National Needs (joint with the Space Studies Board)
- Approaches to Future Space Cooperation and Competition in a Globalizing World: Summary of a Workshop (joint with the Space Studies Board)
- Radioisotope Power Systems: An Imperative for Maintaining U.S. Leadership in Space (joint with the Space Studies Board)
- A Constrained Space Exploration Technology Program:
A Review of NASA’s Exploration Technology Development Program - Managing Space Radiation Risk in the New Era of Space Exploration
Other Classic NRC Reports
In addition to the Decadal Surveys, other reports have become classics that are widely cited. Some that appear to be of most interest to the space community that are not listed above are shown here.
Beyond Fortress America: National Security Controls on Science and Technology in a Globalized World (2009, Policy and Global Affairs)
NASA’s Beyond Einstein Program: An Architecture for Implementation (2007, SSB and BPA)
Rising Above the Gathering Storm: Energizing and Employing America for a Brighter Economic Future (2007, Committee on Science, Engineering and Public Policy)
The Scientific Context for Exploration of the Moon: Final Report (2007, SSB)
The Limits of Organic Life in Planetary Systems (2007, SSB) [the “weird life” report]
Building a Better NASA Workforce: Meeting the Workforce Needs for the National Vision for Space Exploration (2007, SSB and ASEB)
An Assessment of Balance in NASA’s Science Programs (2006, SSB)
Assessment of Options for Extending the Life of the Hubble Space Telescope: Final Report (2004, SSB and ASEB)
A Strategy for Research in Space Biology and Medicine into the Next Century (1998, SSB)
U.S.-European Collaboration in Space Science (1998, SSB)
The Human Exploration of Space (1997, SSB)
Toward a New Era in Space: Realigning Policies to New Priorities (the Stever report) (1988, SSB)