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Space Studies Board and Discipline Committees 2

SSB Membership 2

Study Committees 3

Discipline Committee Co-Chairs 3

Other Activities 4

Recent Decadal Survey Announcements 5

Report Release 6

Lloyd V. Berkner Space Policy Internship 6

Staff News 7

SSB Staff 7

SSB Calendar 8

Selected Reports Available from the SSB 9

The next SSB meeting will be held November 16-17, 2021.

Thank you to the SSB Administrative staff—Megan Chamberlain, Gaybrielle Holbert, Celeste Naylor, Tanja Pilzak, Andrea Rebholz, and Dionna Wise—for their contributions to this newsletter.

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J 1, 2020—J 30, 2021 MARGARET KIVELSON, NAS, Chair

University of California, Los Angeles GREGORY P. ASNER, NAS Carnegie Institution for Science ADAM BURROWS, NAS Princeton University JAMES H. CROCKER, NAE Lockheed Martin Space Systems Company (retired) MARY LYNNE DITTMAR Coalition for Deep Space Exploration JEFF DOZIER University of California, Santa Barbara MELINDA DARBY DYAR Mount Holyoke College ANTONIO L. ELIAS, NAE Orbital ATK, Inc. (retired) VICTORIA HAMILTON Southwest Research Institute CHRYSSA KOUVELIOTOU, NAS The George Washington University DENNIS P. LETTENMAIER, NAE University of California, Los Angeles ROSALY M. LOPES Jet Propulsion Laboratory STEPHEN J. MACKWELL American Institute of Physics DAVID J. MCCOMAS Princeton University LARRY PAXTON, JR. Johns Hopkins University, Applied Physics Laboratory ELIOT QUATAERT, NAS University of California, Berkeley MARK P. SAUNDERS Independent Consultant BARBARA SHERWOOD LOLLAR, NAE University of Toronto HOWARD J. SINGER National Oceanographic and Atmospheric Administration HARLAN E. SPENCE University of New Hampshire ERIKA WAGNER Blue Origin, LLC PAUL WOOSTER Space Explorations Technologies EDWARD L. WRIGHT, NAS University of California, Los Angeles L CHARLES KENNEL, NAS U.S. Representative COSPAR

SSB MEMBERSHIP Board Director: Colleen N. Hartman S S B D C

The Space Studies Board (SSB) and Aeronautics and Space Engineering Board (ASEB) met virtually May 24-27, 2021. On May 24, the SSB was welcomed by the ASEB as guests at its meeting by the acting chair Ilan Kroo. Speakers for day 1 included Robert Pearce, associate administrator for NASA’s Aeronautics Research Mission Directorate; John-Paul Clarke, chair of the planning committee for the ASEB workshop on Flying in the COVID-19 Era; and Robert Braun and Roger Myers, co-chairs of the ASEB report on Space Nuclear Propulsion for Human Mars Exploration. The board then heard from a panel of experts on aviation actions to reduce carbon emissions and achieve sustainability.

May 25 was a joint session of the ASEB and SSB, chaired by Ilan Kroo and Margy Kivelson, SSB chair. The boards had the pleasure of welcoming Senator Bill Nelson, the newly sworn in (May 3, 2021) NASA administrator for a discussion of his early vision for the agency. The boards had a discussion with the House Subcommittee on Space and Aeronautics staff leadership, Tom Hammond (Minority staff director) and Pamela Whitney (Majority staff director). The boards received updates on LISA technology and science from Stefano Vitale, University of Trento, and on LISA/ESA programmatic plans from Fabio Favata and Paul McNamara, ESA. The boards also received updates from and had discussions with Jim Reuter, associate administra-tor for NASA’s Space Technology Mission Directorate and Kathy Lueders, associate adminis-trator for NASA’s Human Exploration Operations Mission Directorate.

The SSB then continued its meeting May 26-27, welcoming the ASEB as guests. SSB chair Margy Kivelson welcomed Thomas Zurbuchen, associate administrator of NASA’s Science Mission Directorate, for an update and discussion with the board. The board was then treated to a keynote science talk from Jocelyn Bell Burnell, Oxford University, about her amazing ca-reer. The board then received updates from the co-chairs of its six discipline committees: CAA, CSSP, CESAS, CAPS, CBPSS, and CoPP.

The board’s next meeting will be held November 16-17, 2021, virtually and at the Arnold and Mabel Beckman Center, Irvine, California (tentative). The meeting will include a joint SSB/Board on Physics and Astronomy session on November 17. For additional information please see http://nas.edu/ssb.

The Committee on Astrobiology and Planetary Science (CAPS) was not active during this quar-ter, although discussions on a new request for a report were underway with NASA HQ. The committee’s next public meeting is scheduled for September 14-16, virtually. For additional information, please see http://nationalacademies.org/our-work/committee-on-astrobiology-and-planetary-sciences.

The Committee on Astronomy and Astrophysics (CAA) is undergoing its annual rotation, and member nominations are in progress. The committee anticipates receiving a briefing on the findings of the Decadal Survey on Astronomy and Astrophysics 2020 (Astro2020) report during the third quarter of 2022 and is also planning its annual fall/winter meeting. For addi-tional information, please see http://nationalacademies.org/our-work/committee-on-astronomy-and-astrophysics.

The Committee on Biological and Physical Sciences in Space (CBPSS) did not meet in this peri-od, however, development continued on a report summarizing the committee’s March work-shop, “Using Commercial Lunar Payload Services (CLPS) to Achieve Lunar Biological and Phys-

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ical Sciences Objectives.” This rapporteur-written report entered review in July. The committee is planning its next meeting on Oct. 12-14, virtually and at the Arnold and Mabel Beckman Center, Irvine, California. For additional information, please see https://www.nationalacademies.org/our-work/committee-on-biological-and-physical-sciences-in-space.

The Committee on Earth Science and Applications from Space (CESAS) did not meet during this quarter; its next scheduled pub-lic meeting will take place this fall at a date to be determined. The committee remained engaged in conversations regarding Executive Branch initiatives and agency responses that have led to a renewed emphasis on Earth System Science and the challenge posed by cli-mate change. Also, several committee members served on the study, “Future Use of NASA Airborne Platforms to Advance Earth Science Priorities,” which released the report, Airborne Platforms to Advance NASA Earth System Science Priorities: Assessing the Future Need for a Large Aircraft (2021). For additional information, please see nationalacademies.org/our-work/committee-on-earth-sciences-and-applications-from-space.

The Committee on Planetary Protection (CoPP) has a scope that includes those aspects of planetary environments, life sciences, spacecraft engineering, technology, and science policy relevant to the control of biological cross-contamination arising from robotic missions and human exploration and utilization of solar system bod-ies. On February 22, CoPP initiated its second task negotiated with NASA to compose a short report that identifies criteria for deter-mining locations or regions on Mars that are potentially suitable for missions of less restrictive bioburden than the current requirements for Category IV. From April-June, CoPP heard briefings from multi-ple stakeholders in the academic, government, and space industry sectors to inform its deliberations through a series of open session meetings. In June, CoPP concluded its information gathering and began its closed deliberations and report drafting. The report is ex-pected to be released in Fall 2021. Conversations have begun on the task for the third report from the committee. For additional infor-mation, please see http://nationalacademies.org/our-work/committee-on-planetary-protection.

The Committee on Solar and Space Physics (CSSP) has focused on refining plans for their fall meeting, scheduled for October 12-14, and continuing preparations for the upcoming decadal survey. For additional information, please see http://nationalacademies.org/our-work/committee-on-solar-and-space-physics.

S C The Decadal Survey on Astronomy and Astrophysics 2020 (Astro2020) continued to make significant progress toward its final report during this quarter. The steering committee has continued to hold approximately weekly virtual closed meetings. As announced by the co-chairs on June 9, 2021 (see full text of the statement on page 5), the survey report was submitted for peer review. Now, ac-tive internal conversations about how to respond to review com-ments are taking place on a weekly basis. For additional infor-mation, please see http://nas.edu/astro2020.

The Planetary Science and Astrobiology Decadal Survey 2022-2032 consists of a steering group, led by the survey co-chairs Robin Canup and Phil Christensen, six supporting panels, and approxi-mately 25 informal, cross-survey writing groups. All groups held regular meetings during the second quarter, and the survey remains on track to deliver its report to NASA and NSF by the first or second quarter of CY 2022. Activities during the second have included draft-ing text addressing the 12 key science questions developed by the survey members around which the survey report will be organized, organizing writing groups, and analyzing state of the profession information to the maximum extent given the limited data

Ten studies have been developed by Goddard Space Flight Center, the Applied Physics Laboratory, and the Jet Propulsion Laboratory to help inform the survey. Nine of these were medium-fidelity ex-plorations of possible ways to address science goals that comple-

Committee on Astrobiology and Planetary Science (CAPS)

Christopher H. House, The Pennsylvania State University

Committee on Astronomy and Astrophysics (CAA)

(joint with the Board on Physics and Astronomy)

Vassiliki (Vicky) Kalogera, Northwestern University Thomas Greene, NASA Ames Research Center

Committee on Biological and Physical Sciences in Space (CBPSS) (joint with the Aeronautics and Space Engineering Board [ASEB])

Dava J. Newman, Massachusetts Institute of Technology

Committee on Earth Science and Applications from Space (CESAS)

Everette Joseph, National Center for Atmospheric Research Steven W. Running, University of Montana (emeritus)

Committee on Planetary Protection (CoPP) (joint with the ASEB and the Board on Life Sciences)

Joseph K. Alexander, Alexander Space Policy Consultants Amanda Hendrix, Planetary Science Institute

Committee on Solar and Space Physics (CSSP)

Maura E. Hagan, Utah State University Tuija Pulkkinen, University of Michigan

SSB DISCIPLINE COMMITTEE CHAIRS

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ment those of pre-decadal mission concept studies. A tenth exam-ines a set of low-fidelity concepts that could address the implemen-tation of planetary defense goals. Reports of all ten studies have been delivered to the survey and will be assessed and prioritized by the steering group during the third quarter of 2021. The complete reports describing the ten completed studies will be made public when the survey report is released in 2022.

In response to NASA’s postponement of the planned announcement of opportunity for the fifth New Frontiers mission from 2022 to 2024, the survey’s co-chairs issued a public statement explaining that the survey would not issue any recommendations relating to this topic (see full text of statement on page 5). For additional infor-mation please see http://nas.edu/planetarydecadal.

Work continued in this period for the Decadal Survey on Biological and Physical Sciences Research in Space 2023-2032 with the solic-itation of candidates, extensive vetting of steering committee nomi-nations, and the release of a call to the community for topical and campaign white papers. The nominees for the steering committee were approved and the first meeting of the steering committee was held virtually August16-17, 2021. For additional information, please see http://nas.edu/bpsdecadal.

The Committee on the Foundation for Assessing the Health and Vitality of the NASA Science Mission Directorate's Research Communities was appointed in April. The committee is co-chaired by Charlie Bolden and Wanda Sigur. The study will define the data that NASA needs to collect to enable each future decadal survey to conduct its own analysis of its research community's health and vitality. This committee will recommend actions to im-prove the health and vitality of the communities of researchers to aid in the accomplishment of the NASA research objectives. The committee held several virtual meetings this quarter and will contin-ue to meet virtually through the summer and develop a draft report by the fall, with planned delivery in early 2022. For additional infor-mation, please see https://www.nationalacademies.org/our-work/foundation-for-assessing-the-health-and-vitality-of-the-nasa-science-mission-directorates-research-communities.

The Committee on Increasing Diversity in the Leadership of Com-peted Space Missions held public meetings on April 27-29, June 8, June 16, and June 30. A broad range of topics were covered by indi-vidual speakers and panels in these meetings, including mission team formation and proposal development processes, research on team science, diversity programs and practices at leading govern-ment agencies, NASA mission demographics, and diversity in STEM education and programs. The committee also conducted extensive work to initiate a program of external data collection for this study, as well as acquire and assess additional datasets from NASA and

other sources. This work is ongoing, along with literature review and report development activities. The next committee meeting will take place September 1-2, 2021. For additional information, please see https://nationalacademies.org/our-work/increasing-diversity-in-the-leadership-of-competed-space-missions

The Committee on Lessons Learned in the Implementation of NASA’s Earth Venture Class is examining various issues and les-sons learned in the implementation of the Instrument (EV-I) and Mission (EV-M) elements of NASA’s Earth Ventures (EVs). During the quarter, the committee met regularly via teleconference and conducted numerous interviews over Zoom with EV-I and EV-M principal investigators, project scientists, and program managers, as well as with NASA HQ and Center personnel involved in the EV pro-gram. A report from the committee is expected in fall 2021. For ad-ditional information, please see nationalacademies.org/our-work/lessons-learned-in-the-implementation-of-nasas-earth-venture-class.

Planning for the Future Space Weather Operations and Research Infrastructure: Proceedings of a Workshop was re-leased April 26. This workshop focused on the cur-rent and future operational needs of NOAA. A sec-ond workshop will focus on the research agenda and observations needs necessary to improve under-standing of the Sun-Earth system that generates

space weather. For additional information, please see https://nationalacademies.org/our-work/space-weather-operations-and-research-infrastructure-workshop.

O A The Committee on Space Research (COSPAR) 44th Scientific As-sembly will be held in Athens, Greece, on July 16-24, 2022. For addi-tional information please see http://cosparhq.cnes.fr/.

The Forum for New Leaders in Space Science, a cooperative ac-tivity between the National Academies of Sciences, Engineering, and Medicine and the Chinese Academy of Sciences (CAS), is de-signed to provide opportunities for a highly select group of young space scientists from China and the United States to discuss re-search in an intimate and collegial environment. The planning for the 11th and 12th forums is on hold.

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Subject: Delay of New Frontiers (NF)-5 and ramifications for the Decadal Survey

Dear Colleagues:

We have entered the most intense phase of effort on the Planetary Science and Astrobiology Decadal Survey and the nearly 100 mem-bers of the Decadal Committee are working tirelessly. We are ex-tremely grateful for all of their efforts, and we remain on-track for release of our report at the end of March 2022.

The delay of the NF-5 Announcement of Opportunity (AO), as de-scribed in the Third Community Announcement released by NASA on May 12, has substantial ramifications for the Decadal Survey. The Decadal Statement of Task charges us with developing “a com-prehensive science and mission strategy” for the 2023 to 2032 dec-ade, within which the AO release for NF-5 will now fall. However, when the Decadal Committee was populated last summer, it was with the understanding that the NF-5 mission candidates defined by the prior Decadal Survey (Vision and Voyages for Planetary Sci-ence in the Decade 2013-2022), and modified by subsequent NASA decisions and CAPS findings, would not be affected by this Decadal for the NF-5 call. Changing that stance now would create conflicts of interest and other problematic issues for the Survey and the community.

We take our responsibility to represent the community very seri-ously, and protecting the integrity of the Decadal Survey process is our highest priority. To avoid real or perceived conflicts, the Deca-dal Steering Committee has decided that it will retain the list of mission themes for NF-5 previously provided by NASA in their Sec-ond Community Announcement on November 5, 2020. We will con-tinue to assess the future of the New Frontiers program and will formulate recommendations for NF-6 and beyond as originally planned.

Sincerely,

Robin Canup and Phil Christensen

Subject: Update on the status of the Astro2020 decadal survey

Dear Colleagues:

We write with an update on the status of the Astro2020 decadal survey. After many months of Zoom meetings and hard work on the part of the committee, the Survey Report has now been sub-mitted for peer review. For those not familiar with this process, this report, as well as the reports from the science, program, and state of the profession panels all undergo a rigorous external review in-volving multiple referees with a broad range of expertise. In our previous update we projected pre-publication release of the Survey in June, however this is clearly going to slip. The Survey Committee will respond expeditiously, but also thoroughly, to the advice that it receives from the reviewers.

It has been a challenging year on multiple fronts, as we have all nav-igated the personal and professional challenges of the pandemic and also witnessed the racial and social injustices so prominently exposed in our country. It is also a time of great scientific discovery, progress, and opportunity, and we look forward to sharing the re-sults of the Survey with you very soon.

Thank you for your continued support.

Fiona Harrison and Robert Kennicutt

Astronomy and Astrophysics Decadal Survey

June 9, 2021

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Planetary Science and Astrobiology Decadal Survey

May 25, 2021

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R R Copies of reports are available from the SSB office at ssb@nas.edu

or at https://www.nap.edu/author/SSB.

Airborne Platforms to Advance NASA Earth System Science Priori-ties: Assessing the Future Need for a Large Aircraft The National Aeronautics and Space Administration (NASA) and other U.S. science research agencies operate a fleet of research aircraft and other airborne platforms that offer diverse capabilities. To inform NASA's future in-vestments in airborne platforms, this study examines whether a large aircraft that would replace the current NASA DC-8 is needed to address Earth system science questions, and the role of other airborne platforms for achieving future Earth system science research goals. The report is available at https://www.nap.edu/catalog/26079/.

L V. B S P I P

This Space Studies Board internship program encourages applications from undergraduate and graduate students interested in space science and applications. Applicants must be a registered student at a U.S. university or college and have completed their junior year. An applicant must also have long-term career goals in space science research, applications, or policy, possess excellent written and verbal communications skills in their particular area of study, and be capable of independent work based on establish research techniques. For more information and how to apply, please see http://nationalacademies.org/our-work/lloyd-v-berkner-space-policy-internship-program. Berkner Summer Program (Undergraduate Students only) Applications will be accepted beginning September 1. The deadline for submitting applications is the first Monday in February; selections will be made by the first Monday in March. Berkner Autumn Program (Undergraduate and Graduate Students) Applications will be accepted beginning April 1. The deadline for submitting applications is the first Monday in June; selections will be made by the first Monday in July.

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COLLEEN N. HARTMAN Director ALAN ANGLEMAN* Senior Program Officer ARTHUR A. CHARO Senior Program Officer DWAYNE A. DAY* Senior Program Officer SANDRA J. GRAHAM Senior Program Officer GREGORY MACK* Senior Program Officer ABIGAIL SHEFFER Senior Program Officer DAVID H. SMITH Senior Program Officer DANIEL NAGASAWA Program Officer SARA CRANDALL Associate Program Officer (from June) MIA BROWN Research Associate MEGAN CHAMBERLAIN Senior Program Assistant GAYBRIELLE HOLBERT Program Assistant ANDREA REBHOLZ* Program Coordinator DIONNA WISE Program Coordinator MEG KNEMEYER Senior Finance Business Partner RADAKA LIGHTFOOT Senior Financial Associate CELESTE A. NAYLOR Information Management Associate TANJA E. PILZAK Manager, Program Operations MARGUERITE SCHNEIDER* Administrative Coordinator LILY DAVEY Lloyd V. Berkner Space Policy Intern PAULA DEANDA Lloyd V. Berkner Space Policy Intern KATHERINE DZURILLA Temporary Research Associate LUCIA ILLARI Temporary Research Associate CINDY VO Temporary Research Associate * Staff of other Academies boards who are shared with the SSB.

SSB Staff S N

The board was joined this summer by two Lloyd V. Berkner Space Policy interns: Lily Davey and Paula DeAnda.

Lily Davey recently received her Bachelor of Arts from Connecticut Col-lege in mathematics and physics, with an astrophysics concentration. She was a student researcher on a Lorentz variant cosmology project for 7 months, a role that involved presenting her research to the diverse pool of other student researchers on campus. In her efforts to ensure all attendees could understand her presentation, Lily gained a passion for increasing the accessibility of scientific research, both within the STEM community and

across the general public. Her first experience with science policy was through a self-designed project in the Power, Knowledge, and Practice Integrative Pathway, an optional part of her college’s curricu-lum, where she authored a research paper on the origins and impact of the gender gap in STEM, in-cluding its influence on scientific advancement, and presented a talk entitled “Science as Subjective: A Departure from the ‘Absolute Truth’ Narrative.” Lily was part of many conversations regarding how to make STEM education at Connecticut College more interdisciplinary, both during her Pathway meetings and as a member of the Roosevelt Institution, a progressive policy organization with a large network of college campuses throughout the United States. Lily is passionate about making science accessible and equitable, and is excited to learn more about the world of science policy as a Space Studies Board intern.

Paula DeAnda is an incoming student at Rice University where she will be pursuing a master of science in space studies. Paula recently graduated from Wellesley College with a bachelor’s degree in astrophysics. As a Posse Foun-dation scholar and McNair scholar, she developed a passion for promoting inclusivity in science. At Wellesley, she worked as an inclusivity intern for the physics department and served as the inclusivity and equity chair for the So-ciety of Physics Students. Upon graduation, Paula was awarded the Phyllis J.

Fleming award for excellent academic performance in physics and for outstanding community service to the physics program at Wellesley. During the school year, Paula worked as a learning assistant for physics and she conducted TESS follow up on exoplanet candidates using the Planewave telescope. She spent her summers developing her passion for education and outreach. She spent two summers working as the special events intern at the education non-profit Breakthrough Houston and she spent six months working as an intern and counselor at Pisgah Astronomical Research Institute. Paula hopes to combine her passion for astronomy and physics with her commitment to promoting inclu-sivity by exploring how the scientific community can effectively collaborate and communicate with the government to enact change. Paula is excited to learn more about space policy and bring her unique perspective and experience to her work as a Space Studies Board intern this summer.

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SSB Events

Keck Center 500 Fifth St NW, Washington, DC

Arnold and Mabel Beckman Center

100 Academy Drive Irvine, CA

J. Erik Jonsson Conference Center 314 Quissett Ave Woods Hole, MA

October 19-21 Aeronautics and Space Engineering Board virtual

November 16-18 Space Studies Board virtual

March 21-25, 2022 Space Science Week Washington, DC

June 7-10, 2022 Space Studies Board and Aeronautics and Space Engineering Board Joint Meeting

Washington, DC

Upcoming Board Meetings and Space Science Week

National Academy of Sciences Building

2101 Constitution Ave NW Washington, DC

Information about meetings of the Space Studies Board, and its discipline and ad hoc committees is available at http://nationalacademies.org/ssb. Information about the meetings of the Planetary Science and Astrobiology Decadal Survey 2023-2032 is available at http://nas.edu/planetarydecadal. Information about the meetings of the Decadal Survey on Biological and Physical Sci-ences Research in Space 2023-2032 is available at http://https://nas.edu/bpsdecadal.

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SELECTED REPORTS AVAILABLE FROM THE SPACE STUDIES BOARD

For free PDF versions of our reports and a complete list of titles visit http://nap.edu/author/SSB

Planning the Future Space Weather Operations and Research Infrastructure: Proceedings of a Workshop (2021) Available online only

Report Series: Committee on Planetary Protection: Planetary Protection for the Study of Lunar Volatiles (2020) Available online only

Report Series: Committee on Astrobiology and Planetary Science: Options for the Fifth New Frontiers Announcement of Opportunity (2020) Available online only

Assessment of the Report of NASA’s Planetary Protection Independent Review Board (2020) Available online only

Report Series: Committee on Solar and Space Physics: Agile Responses to Short-Notice Rideshare Opportunities for the NASA Heliophysics Division (2020) Available online only

Progress Toward Implementation of the 2013 Decadal Survey for Solar and Space Physics: A Midterm Assessment (2020)

Review of the Draft 2019 Science Mission Directorate Science Plan (2019)

Finding Hazardous Asteroids Using Infrared and Visible Wavelength Telescopes (2019)

Continuous Improvement of NASA’s Innovation Ecosystem: Proceedings of a Workshop (2019)

Report Series: Committee on Astrobiology and Planetary Science: Review of the Planetary Science Aspects of NASA SMD’s Lunar Science and Exploration Initiative (2019) Available online only

Report Series: Committee on Astrobiology and Planetary Science: Review of the Commercial Aspects of NASA SMD’s Lunar Science and Exploration Initiative (2019) Available online only

Planetary Protection Classification of Sample-Return Missions from the Martian Moons (2019)

Strategic Investments in Instrumentation and Facilities for Extraterrestrial Sam-ple Curation and Analysis (2019)

An Astrobiology Strategy for the Search for Life in the Universe (2019)

Open Source Software Policy Options for NASA Earth and Space Sciences (2018)

Exoplanet Science Strategy (2018)

Visions into Voyages for Planetary Sciences in the Decade 2013-2022: A Midterm Review (2018)

Report Series: Committee on Astronomy and Astrophysics: Mission Concept Studies (2018) Available online only

Review and Assessment of Planetary Protection Policy Development Processes (2018)

Thriving on Our Changing Planet: A Decadal Strategy for Earth Observation from Space (2018) Available online only

A Midterm Assessment of Implementation of the Decadal Survey on Life and Physical sciences Research at NASA (2017)

America’s Future in Civil Space: Proceedings of a Workshop-in Brief (2017)

Searching for Life Across Space and Time: Proceedings of a Workshop (2017)

Powering Science: NASA’s Large Strategic Science Missions (2017)

Report Series: Committee on Astrobiology and Planetary Science: Getting Ready for the Next Planetary Sciences Decadal Survey (2017) Available online only

Report Series: Committee on Astronomy and Astrophysics: Small Explorer Mis-sions (2017) Available online only

Report Series: Committee on Solar and Space Physics: Heliophysics Science Cen-ters (2017) Available online only

Review of the Restructured Research and Analysis Programs a NASA’s Planetary Science Division (2017)

Assessment of the National Science Foundation's 2015 Geospace Portfolio Re-view (2017)

Extending Science—NASA’s Space Science Mission Extensions and the Senior Review Process (2016)

New Worlds, New Horizons: A Midterm Assessment (2016)

Achieving Science with CubeSats: Thinking Inside the Box (2016)

Continuity of NASA Earth Observations from Space: A Value Framework (2015)

Review of the MEPAG Report on Mars Special Regions

Hardcopy versions of SSB reports are available free of charge from the SSB while supplies last. To request a hardcopy of a report, send an email to ssb@nas.edu and include your name, affiliation, mailing address, and the name and quantity of each report that you are request-ing.