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| NAS Decadal Survey | |
|---|---|
| Name | NAS Decadal Survey |
| Formed | 1960s |
| Jurisdiction | United States |
| Parent agency | National Academies of Sciences, Engineering, and Medicine |
NAS Decadal Survey
The NAS Decadal Survey is a series of community-driven priority-setting studies conducted by the National Academies of Sciences, Engineering, and Medicine that advise agencies such as the National Aeronautics and Space Administration, the National Science Foundation, and the National Oceanic and Atmospheric Administration. Originating in mid-20th-century practice within the National Academy of Sciences and linked to initiatives involving the National Research Council and presidential science advisors, the surveys guide long-term planning for fields including astronomy, astrophysics, planetary science, earth science, and heliophysics. Panels typically include experts from institutions such as Caltech, MIT, Harvard University, Stanford University, and University of California, Berkeley.
The Decadal Survey process convenes committees under the auspices of the National Academies to produce consensus reports that influence funding decisions by agencies like NASA, NSF, NOAA, and legislative bodies including the United States Congress. Reports synthesize input from researchers affiliated with organizations such as Jet Propulsion Laboratory, Lockheed Martin, Ball Aerospace, SpaceX, Blue Origin, and observatories such as Palomar Observatory and Keck Observatory. Outcomes have steered flagship projects including James Webb Space Telescope, Hubble Space Telescope, Voyager program, Mars Science Laboratory, and missions proposed to the Jupiter system and Saturn.
Decadal Surveys establish prioritized recommendations across disciplines represented by professional societies such as the American Astronomical Society, American Geophysical Union, Planetary Society, and American Institute of Aeronautics and Astronautics. They evaluate programs ranging from ground-based facilities like Large Synoptic Survey Telescope (now Vera C. Rubin Observatory) and Thirty Meter Telescope to spaceborne observatories exemplified by Chandra X-ray Observatory and mission concepts comparable to Europa Clipper and Dragonfly. The scope extends to technology development at laboratories such as Jet Propulsion Laboratory and Lawrence Berkeley National Laboratory, workforce issues related to universities like University of Chicago and Columbia University, and international coordination with agencies including the European Space Agency, Japan Aerospace Exploration Agency, and Canadian Space Agency.
The tradition traces to postwar planning associated with figures such as James A. Van Allen and institutions like the National Science Foundation and the Office of Science and Technology Policy. Major decadal reports include the Astronomy and Astrophysics Decadal Survey cycles (e.g., 2000s, 2010s, 2020s), the Planetary Science Decadal Survey (e.g., 2011, 2023), and the Earth Science and Applications from Space Decadal Survey. Key historical milestones intersect with programs like the Apollo program, the Voyager program, and the establishment of observatories such as Arecibo Observatory and Green Bank Telescope. Committees have featured leaders from Caltech, MIT, Johns Hopkins University, University of Colorado Boulder, and Pennsylvania State University.
Committees follow procedures established by the National Academies including open meetings, community town halls at conferences such as the American Geophysical Union Fall Meeting and the American Astronomical Society meetings, and solicitation of white papers from institutions like Space Telescope Science Institute and SETI Institute. Panels perform cost analyses referencing models from Office of Management and Budget practices, risk assessments influenced by NASA Office of Inspector General findings, and scenario planning akin to studies from RAND Corporation and Brookings Institution. Final recommendations are vetted through review by boards including the Space Studies Board and approved via the governance of the National Academies Board on Science Education.
Recommendations have led to prioritized missions such as the James Webb Space Telescope, the Nancy Grace Roman Space Telescope, the Mars Sample Return campaign, and the Europa Clipper mission. They have influenced investments in facilities like the Vera C. Rubin Observatory, radio arrays including the Square Kilometre Array partnerships, and instrumentation programs at centers like National Radio Astronomy Observatory. Legislative and budgetary responses have involved the United States Congress, appropriations committees, and executive agencies including NASA and NSF, affecting grant portfolios at National Science Foundation Directorate for Mathematical and Physical Sciences and workforce development programs at National Institutes of Health where relevant cross-disciplinary recommendations applied.
Critiques of the surveys have come from stakeholders at institutions such as University of California, San Diego, Carnegie Institution for Science, and private firms including Boeing and Northrop Grumman over perceived biases, opportunity costs, and ranking methodologies. Controversies include debates about the prioritization of flagship missions (e.g., tensions seen around the James Webb Space Telescope cost growth), concerns voiced by representatives from the Indigenous peoples—noting impacts near sites like Mauna Kea and Sacred sites—and disputes over international collaboration exemplified in negotiations with European Space Agency and Roscosmos. Methodological criticisms reference cost-estimation practices challenged by analyses from Congressional Budget Office and audit findings by the Government Accountability Office.
Prominent implementations trace to projects that reshaped multiple fields: the selection and development of the Hubble Space Telescope and subsequent servicing missions executed by Space Shuttle crews including crews from missions like STS-31; the strategic endorsement of the Voyager program trajectories leading to planetary flybys and interstellar studies; the prioritization of the Mars Science Laboratory resulting in the Curiosity rover; and the roadmap that enabled the James Webb Space Telescope deployment with contractors such as Northrop Grumman and partners like European Space Agency. Outcomes also include investments in terrestrial facilities such as the Very Large Array and policy shifts reflected in budget allocations by the United States Congress and strategic plans by agencies like NASA and NSF.