Appendix B

White Papers Received

Broad community participation is one of the defining features of a decadal survey. One of the most effective means to engage the community is solicitation of input from any and all interested parties via the submission of white papers. The decadal survey solicited such input via the standard means used in past surveys—for example, through community newsletters and solicitations during town hall meetings held in the months prior to the initiation of the survey. An innovation for this survey was a series of webinars designed to introduce early-career researchers to the decadal survey. One of these webinars was devoted to white papers: why they are important, how to write them, and how to submit one.

To facilitate document management, several submission guidelines were imposed. These included imposition of a seven-page limit, a prescribed format, submission to the survey committee via a specific individual (the first or submitting author) through a special website set up by the National Academies, and a series of cascading subject-specific deadlines—science-related papers by 15 July 2020, mission-related papers by 15 August, and those concerning the state of the profession by 15 September—to ensure that all contributions were available for consideration and discussion prior to the first meeting of the survey committee. Everyone in the planetary science community was encouraged to author white papers.

In total, 527 unique white papers were received (compared to 24 and 199 for the first and second planetary decadal surveys, respectively) and are listed below alphabetically by their respective submitting author. The full text of each white paper listed below can be found in the 18 March 2021 issue of the Bulletin of the American Astronomical Society (AAS),¹ except for six whose authors opted out of publication (their contributions are indicated below by a terminal *).²

The committee expresses its sincere thanks to the AAS for its continuing support of the space science decadal surveys. These thanks are extended to every individual who contributed to the 527 white papers received. The time, energy, and financial resources devoted by the planetary science and astrobiology communities writ large to support the decadal survey process is clear evidence of its desire to openly discuss and set priorities to guide our future activities as we explore planetary environments both near and far.

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¹ American Astronomical Society, “Whitepapers for the Planetary Science and Astrobiology Decadal Survey 2023–2032,” Bulletin of the AAS 53(4), https://doi.org/10.3847/25c2cfeb.7272e5bb.

² The full text of all the white papers received is also available in a single searchable file at https://tinyurl.com/2p88fx4f.

EACH UNIQUE WHITE PAPER RECEIVED

Abell, P., C. Raymond, T. Daly, and D.R. Adamo. 2020. Near-Earth Object Characterization Priorities and Considerations for Planetary Defense.

Adamo, D. 2020. Toward Greater Preparedness and Resilience in Planetary Defense.

Adamo, D., P.A. Abell, R.C. Anderson, B.W. Barbee, J.B. Hopkins, T.D. Jones, R.R. Landis, et al. 2020. Exploration Leading to Low-Latency Telepresence on Mars from Deimos.

Adamo, D., P.A. Abell, R.C. Anderson, B.W. Barbee, T.D. Jones, D.D. Mazanek, and G. Podnar. 2020. Near-Earth Object Exploration Leading to Human Visits.

Ahrens, C. 2020. Advancing Experimental Research and Instrumentation in the Laboratory in Understanding the Moon.

Ahrens, C. 2020. Geologic Science Research Priorities for the Moons of Uranus.

Ahrens, C. 2020. Spectral Science Priorities for an Infrared Spectrometer with Interstellar Probe.

Ahrens, C. 2020. The Need for a Facility to Understand Volatile Ice Rheology.

Airapetian, V., G. Gronoff, K. Kobayashi, D.N. Mvondo, A. Zestos, J. Kasting, B. Hayworth, et al. 2020. The Impact of Extreme Space Weather on the Rise of Biomolecules: Early Earth and Exo-Earth Environments.

Aloisi, A., and N. Reid. 2020. (Un)conscious Bias in the Astronomical Profession: Universal Recommendations to Improve Fairness, Inclusiveness, and Representation.

Amini, R., A. Azari, S. Bhaskaran, P. Beauchamp, J. Castillo-Rogez, R. Castano, S. Chung, et al. 2020. Advancing the Scientific Frontier with Increasingly Autonomous Systems.

Arney, G., N. Izenberg, S.R. Kane, K.E. Mandt, V.S. Meadows, A.M. Rymer, L.C. Quick, et al. 2020. Exoplanets in Our Backyard: A Report from an Interdisciplinary Community Workshop and a Call to Combined Action.

Arnold, J., T.R. Spilker, D.M. Cornelius, G.A. Allen, A.M. Brandis, D.A. Saunders, M. Qu, et al. 2020. Heatshields for Aerogravity Assist Vehicles Whose Deceleration at Titan Saves Mass for Future Flagship Class Exploration of Enceladus.

Ashley, J., C. Schröder, A.W. Tait, A.G. Tomkins, P.J. Boston, R.C. Wiens, D.F. Wellington, et al. 2020. Continued Use of Exogenic Materials Found on Mars as Planetary Research Tools.

Asmar, S., R.A. Preston, P. Vergados, D.H. Atkinson, T. Andert, H. Ando, C.O. Ao, et al. 2020. Solar System Interiors, Atmospheres, and Surfaces Investigations via Radio Links: Goals for the Next Decade.

Austin, A., G. Afonso, S. Albert, H. Ali, A. Alunni, J. Arnold, G. Bailet, et al. 2020. Enabling and Enhancing Science Exploration Across the Solar System: Aerocapture Technology for SmallSat to Flagship Missions.

Aye, M., C. Million, and A. Annex. 2020. The Role of (Open Source) Software in Planetary Science.

Azari, A., J.B. Biersteker, R.M. Dewey, E.J. Forsberg, C.D.K. Harris, H.R. Kerner, K.A. Skinner, et al. 2020. Integrating Machine Learning for Planetary Science: Perspectives for the Next Decade.

Bailey, S. 2020. Will Key Lunar Decadal Objectives Be Missed in the Lunar Land Rush?

Bailey, S., and D. Paige. 2020. Armada: A Flagship Multi-Mission Architecture.

Baines, K., A. Akins, D.H. Atkinson, S. Atreya, M. Bullock, K. Cheung, J.A. Cutts, et al. 2020. New-Frontiers (NF) Class In-Situ Exploration of Venus: The Venus Climate and Geophysics Mission Concept.

Balcerski, J., K. Jessup, G. Hunter, M. Zborowski, A. Colozza, and D. Makel. 2020. Exploration of Venus’ Atmosphere by Low-Cost Distributed Sensing Architecture.

Balint, T., D. Atkinson, A. Babuscia, J. Baker, C. Bradford, C. Elder, R. Conversano, et al. 2020. Uranus System Exploration Under the New Frontiers Mission Class (A Novel Perspective).

Balint, T., Y.H. Lee, S.M. Howell, S.M. Perl, K. Craft, T.A. Hurford, M.L. Cable, et al. 2020. Enabling the Next Frontiers in Astrobiology—Ocean and Ice Worlds Explorations with a Radioisotope Power System Inside a Pressure Vessel.

Banfield, D., J. Stern, A. Davila, S.S. Johnson, D. Brain, R. Wordsworth, B. Horgan, et al. 2020. Summary of the Mars Science Goals, Objectives, Investigations, and Priorities.

Bapst, J., T.J. Parker, J. Balaram, T. Tzanetos, L.H. Matthies, C.D. Edwards, A. Freeman, et al. 2020. Mars Science Helicopter: Compelling Science Enabled by an Aerial Platform.

Barba, N., A. Austin, D. Banfield, A.B. Chmielewski, P. Clark, W. Coogan, R. Conversano, et al. 2020. High Science Value Return of Small Spacecraft at Mars.

Barbee, B., P.A. Abell, D.R. Adamo, J. Atchison, O. Barnouin, J. Cahill, P. Chodas, et al. 2020. Research and Analysis for Planetary Defense In-Situ Spacecraft Missions to Near-Earth Objects.

Barbee, B., P.A. Abell, J. Atchison, O. Barnouin, S. Bhaskaran, J. Brophy, J. Cahill, et al. 2020. Technology Development for Planetary Defense In Situ Spacecraft Missions to Near-Earth Objects.

Barbee, B., P.A. Abell, R.P. Binzel, M. Brozovic, J. Cahill, P. Chodas, T. Daly, et al. 2020. Future Spacecraft Missions for Planetary Defense Preparation.

Barge, L.M., L. Rodriguez, J.M. Weber, and B. Theiling. 2020. Beyond “Biosignatures”: Importance of Applying Abiotic/Prebiotic Chemistry to the Search for Extraterrestrial Life.

Barnes, J.W., A.G. Hayes, J.M. Soderblom, S.M. MacKenzie, J.D. Hofgartner, R.D. Lorenz, E.P. Turtle, et al. 2020. New Frontiers Titan Orbiter.

Bauer, J., S. Milam, G. Bjoraker, S. Carey, D. Daou, L. Fletcher, W. Harris, et al. 2020. Planetary Science with Astrophysical Assets: Defining the Core Capabilities of Platforms.

Beauchamp, P., J. Moore, L. Spilker, A. Hendrix, J. Bowman, M. Cable, S. Edgington, et al. 2020. Technologies for Ocean Worlds.

Becerra, P., A. Bramson, A. Brown, S. Byrne, S. Diniega, B. Horgan, M. Sori, et al. 2020. The Importance of the Climate Record in the Martian Polar Layered Deposits.

Beck, R., M. Mahzari, H. Hwang, M. Stackpoole, E. Venkatapathy, D. Ellerby, T. White, et al. 2020. TPS and Entry System Technologies for Future Mars and Titan Exploration.

Beddingfield, C., C. Li, S. Atreya, P. Beauchamp, I. Cohen, J. Fortney, H. Hammel, et al. 2020. Exploration of the Ice Giant Systems.

Benardini, J., N. Singh, and K. Venkateswaran. 2020. Molecular Biology Modernizing Planetary Protection Engineering to Enable Science for Biologically Sensitive Robotic and Human Missions.

Benner, S., E. Biondia, H.-J. Kima, and J. Špaček. 2020. Chemical Guidance in the Search for Past and Extant Life on Mars.

Bennett, K., M. McAdam, M. Milazzo, P. Garcia, J. Shelton, P. Gardiner, S. Diniega, et al. 2020. The Preventing Harassment in Science Workshop: Summary and Best Practices for Planetary Science and Astrobiology.

Bering, E.A., A. Parker, M. Giambusso, M. Carter, J. Squire, F.C. Díaz, and S. M. Hörst. 2020. Solar and Hybrid Electric Propulsion to the Kuiper Belt and Beyond.

Bering, E.A., L. Andersson, M. Moldwin, and P. Withers. 2020. MARSCat: Imaging of the Martian Ionosphere Using a CubeSat Constellation.

Binzel, R., B.W. Barbee, O.S. Barnouin, J.F. Bell, M. Birlan, A. Boley, W. Bottke, et al. 2020. Apophis 2029: Decadal Opportunity for the Science of Planetary Defense.

Blake, D., K. Zacny, T. Bristow, S. Morrison, P. Sarrazin, E. Rampe, V. Tu, et al. 2020. MER-Class Rover Investigations of Mars in the Coming Decades.

Blake, D., R. Hazen, S. Morrison, T. Bristow, K. Zacny, E. Rampe, R. Downs, et al. 2020. In-Situ Crystallographic Investigations of Solar Systems in the Next Decade.

Blake, D., R. Walroth, T. Bristow, P. Sarrazin, M. Gailhanou, R. Downs, and K. Thompson. 2020. MapX: An In-situ X-ray µ-Mapper for Habitability and Biosignature Studies.

Blake, D., T. Bristow, P. Sarrazin, and K. Zacny. 2020. In-Situ Mineralogical Analysis of the Venus Surface Using X-ray Diffraction.

Blanc, M., K. Mandt, O. Mousis, N. André, D.H. Atkinson, S. Atreya, T. Balint, et al. 2020. Science Goals and Mission Objectives for the Future Exploration of Ice Giants Systems: A Horizon 2061 Perspective—Part I.

Blanc, M., O. Prieto-Ballesteros, N. André, J. Gomez-Elvira, G. Jones, V. Sterken, et al. 2020. Joint Europa Mission (JEM) a Multiscale, Multi-Platform Mission to Characterize Europa’s Habitability and Search for Extant Life.

Blanc, M., K. Mandt, O. Mousis, N. André, D.H. Atkinson, S. Atreya, T. Balint, et al. 2020. Science Goals and Mission Objectives for the Future Exploration of Ice Giants Systems: A Horizon 2061 Perspective—Part II: Mission Scenarios.

Blank, J.G., A. Agha-mohammadi, E.R. Bell, D.A. Crown, B. Morrell, C.J. Patterson, K. Uckert, et al. 2020. Volcanic Caves as Priority Sites for Astrobiology Science.

Blewett, D., J. Halekas, D. Waller, J. Cahill, A. Deutsch, T.D. Glotch, L. Regoli, et al. 2020. Science Case for a Lander or Rover Mission to a Lunar Magnetic Anomaly and Swirl.

Bottke, W. 2020. Exploring the Bombardment History of the Moon.

Bottke, W. 2020. The Evolution of Small Body Populations: From Planet Migration to Thermal Drift Forces.

Bottke, W., and H.F. Levison. 2020. Tenets of an Effective and Efficient Research and Analysis Program for NASA.

Brain, D., R. Lillis, Y. Ma, and R. Ramstad. 2020. The Influence of Planetary Magnetic Fields on Atmospheric Retention and Habitability.

Bramson, A., C. Andres, J. Bapst, P. Becerra, S.W. Courville, C.M. Dundas, et al. 2020. Mid-Latitude Ice on Mars: A Science Target for Planetary Climate Histories and an Exploration Target for In Situ Resources.

Brecht, A., S. Brecht, J. Luhmann, J. Bellan, K. Jessup, T. Navarro, S. Lebonnois, et al. 2020. Closing the Gap Between Theory and Observations of Venus Atmospheric Dynamics with New Measurements.

Brisset, J., E. Fernandez-Valenzuela, A. Sickafoose, F. Venditti, A. Whizin, E. Beltran, A.F.B. de Almeida Prado, et al. 2020. Understanding the Formation and Evolution of the Kuiper Belt by Exploring the Haumea System.

Bristow, T., B. Lafuente, N. Stone, M. Parenteau, S.R. Wolfe, S.P. Rojo, K. Boydstun, et al. 2020. A Strategy for Managing NASA’s Long Tail of Planetary Research Data.

Brooks, S., and T.M. Becker. 2020. Frontiers in Planetary Rings Science.

Brown, A., S. Byrne, E. Zubko, S. Diniega, N. Heavens, M. Mishchenko, J. Schlegel, et al. 2020. The Case for a Multi-Channel Polarization Sensitive Lidar for Investigation of Insolation-Driven Ices and Atmospheres.

Bugga, R., E. Brandon, E. Darcy, R. Ewell, P. Faguay, B. Futz, R. Gitzendanner, et al. 2020. Energy Storage Technologies for Planetary Science and Astrobiology Missions.

Buie, M. 2020. Occultation Studies of Primitive and Small Bodies.

Buratti, B., and M. Sykes. 2020. Small Bodies Assessment Group Community Decadal Survey Summary.

Buratti, B., E. Asphaug, J. Bauer, J. Bellerose, D. Blewett, W. Bottke, D. Britt, et al. 2020. The Small Satellites of the Solar System: Priorities for the Decadal Study.

Burr, D., D. Banfield, M. Day, S. Diniega, L. Fenton, M. Lapôtre, L. Neakrase, et al. 2020. NASA Planetary Wind Tunnel Facilities.

Byrne, P.K., A.J. Dombard, C. Elder, S.A. Hauck, M.M. Daswani, P.V. Regensburger, and S.D. Vance. 2020. Towards a Fuller Understanding of Icy Satellite Seafloors, Interiors, and Habitability.

Byrne, P.K., D.T. Blewett, N.L. Chabot, S.A. Hauck, E. Mazarico, K.E.V. Kaaden, and R.J. Vervack. 2020. One the Case for Landed Mercury Science.

Byrne, P., C.R. Richey, J.C. Castillo-Rogez, and M.V. Sykes. 2020. White Paper on Improvements to the NASA Research and Analysis Proposal and Review System.

Cable, M., S.E. Waller, R. Hodyss, A.E. Hofmann, M.J. Malaska, R.E. Continetti, A. Jaramillo-Botero, et al. 2020. Plume Grain Sampling at Hypervelocity: Implications for Astrobiology Investigations.

Cable, M., S. MacKenzie, M. Neveu, T.M. Hoehler, A.R. Hendrix, J. Eigenbrode, F. Postberg, et al. 2020. The Case for a Return to Enceladus.

Cabrol, N., J. Bishop, S.L. Cady, C. Demergasso, N. Hinman, M. Hoffman, I. Kanik, et al. 2020. Addressing Strategic Knowledge Gaps in the Search for Biosignatures on Mars.

Cabrol, N., L.K. Fenton, K. Warren-Rhodes, J. Hines, N. Hinman, J. Moersch, P. Sobron, et al. 2020. BIOMARS: A Foundational High-Resolution Environmental Sensor Array.

Cahill, J., E.J. Speyerer, D.H. Needham, R. Weber, I. Daubar, E. Costello, D. Moriarty, et al. 2020. Assessing the Present-Day Impact Flux to the Lunar Surface via Impact Flash Monitoring and Its Implications for Sustained Lunar Exploration.

Carpenter, K., M.L. Cable, M. Choukroun, S. Iacoponi, S. Moreland, M. Heverly, H. Nayar, et al. 2020. The Science Case for Surface Mobility on Icy Worlds.

Carpenter, K., M.L. Cable, M.N. Choukroun, H. Ono, R.A. Thakker, M.D. Ingham, P. Mcgarey, et al. 2020. Venture Deep, the Path of Least Resistance: Crevasse-Based Ocean Access Without the Need to Dig or Drill.

Carr, C., M. Samnani, J. Tani, J. McKaig, E. Hammons, D.J. Newman, K. Ho, et al. 2020. Space Drones: An Opportunity to Include, Engage, Accelerate, and Advance.

Carr, G., E. Brandon, R. Ewell, R. Surampudi, A. Barchowsky, C. Iannello, A. Hernandez-Pelle, et al. 2020. Power Electronic Technologies for Planetary Science and Astrobiology Missions.

Carson, J., M. Munk, R. Sostaric, A. Johnson, F. Amzajerdian, J.B. Blair, A.D. Cianciolo, et al. 2020. Precise and Safe Landing Navigation Technologies for Solar System Exploration.

Cartwright, R., C. Beddingfield, T. Nordheim, C. Elder, W. Grundy, B. Buratti, A. Bramson, et al. 2020. The Science Case for Spacecraft Exploration of the Uranian Satellites.

Casani, J.R., M.A. Gibson, D.I. Poston, N.J. Strange, J.O. Elliott, R.L. McNutt, S.L. McCarty, et al. 2020. Enabling a New Generation of Outer Solar System Missions: Engineering Design Studies for Nuclear Electric Propulsion.

Casillas, A., G. Barnett, C. Engelbrecht, C.S. Guernsey, J. McKinnon, M. Preudhomme, J.R. Reh, et al. 2020. Affordability of Outer-Planet Exploration: A Pragmatic Rationale for Implementing a Cold-Propulsion Based Energy-Efficient Spacecraft Infrastructure.

Cassell, A., N. Cheatwood, S. Hughes, C. Kazemba, and G. Swanson. 2020. Deployable Entry Vehicles for Future Science and Exploration Missions.

Castillo-Rogez, J., C. Richey, R. Pappalardo, S. Brooks, I.J. Daubar, E. Turtle, et al. 2020. Mission Roles: Status, Issues, and Recommendations for the Planetary Science and Astrobiology Decadal Committee Consideration.

Castillo-Rogez, J., J.D. Hofgartner, K. Singer, C. Cockell, B.J. Holler, M. Neveu, M. Bose, et al. 2020. Habitability of Small Bodies—State of Knowledge and Motivations for Exploration in the Next Decade.

Castillo-Rogez, J., J. Scully, M. Neveu, D. Wyrick, G. Thangjam, A. Rivkin, M. Sori, et al. 2020. Science Motivations for the Future Exploration of Ceres.

Castillo-Rogez, J., B. Donitz, I. Nesnas, T. Swindle, J. O’Rourke, M. Villarreal, et al. 2020. Smallsats for Small Body Exploration and Technology Infusion.

Castillo-Rogez, J., M. Sykes, A. Hendrix, J. Rathbun, C. Richey, and P.K. Byrne. 2020. NASA Research and Analysis: Status, Issues, and Recommendations for the Planetary Science and Astrobiology Decadal Survey Committee.

Chanover, N., C. Schmidt, and D. DeColibus. 2020. The Continued Relevance of 4m Class Telescopes to Planetary Science in the 2020s.

Cheng, A., R.T. Daly, O.S. Barnouin, J.B. Plescia, R.P. Binzel, D.C. Richardson, J.V. DeMartini, et al. 2020. Apophis 2029 Planetary Defense Mission Options.

Chou, L., N. Grefenstette, S.S. Johnson, H. Graham, P. Mahaffy, C. Kempes, J.E. Elsila, et al. 2020. Towards a More Universal Life Detection Strategy.

Choukroun, M., P. Backes, M.L. Cable, R. Hodyss, M. Badescu, J.L. Molaro, S. Moreland, et al. 2020. Sampling Ocean Materials, Traces of Life or Biosignatures in Plume Deposits on Enceladus’s Surface.

Clark, K. 2020. Classical and Quantum Cell-Cell Signaling by Microbial Life on Earth and Possible Other Livable Worlds.

Clark, K. 2020. Classical and Quantum Information Processing in Aneural to Neural Cellular Decision Making on Earth and Perhaps Beyond.

Clark, K. 2020. Eco-Evolutionary Origins, Nature, and Impact of Paired Reproduction in Earth and Possible Extraterrestial Microbiota.

Clark, K. 2020. Ultrsociality, Goods Theory, and Primitive Agriculture in Cosmopolitan Earth and Putative Extraterrestial Microbial Symbionts.

Clement, B.G., J.N. Benardini, R.C. Hendrickson, E.F. Klonicki, and A. L. Smith. 2020. Planetary Protection Conventions for Landed Missions to Ocean Worlds.

Cohen, B., G.F. Herzog, S.J. Jaret, J.I. Simon, T.D. Swindle, S.E. Suarez, M.M. Tremblay, et al. 2020. Geochronology as a Framework for Inner Solar System History and Evolution.

Cohen, B., S. Lawrence, B. Denevi, T. Glotch, D. Hurley, C.R. Neal, M. Robinson, et al. 2020. Lunar Missions for the Decade 2023–2033.

Cohen, I., C. Beddingfield, R. Chancia, G. DiBraccio, M. Hedman, S. MacKenzie, B. Mauk, et al. 2020. New Frontiers-Class Uranus Orbiter: Exploring the Feasibility of Achieving Multidisciplinary Science with a Mid-Scale Mission.

Collinson, G., M. Benna, and R. Pfaff. 2020. Exploring the Martian Atmosphere’s “Dynamo Region” to Better Understand Phenomena That Impact Radio Communication at Earth.

Collinson, G., S. Boucher, S. Curry, G. DiBraccio, C. Dong, C. Fowler, Y. Futaana, et al. 2020. Space Physics at Venus: Exploring Atmospheric Dynamics, Escape, and Evolution.

Costello, E., R.W.K. Potter, D.M.H. Baker, R.R. Ghent, J. Gillis-Davis, J. Grier, S.P.S. Gulick, et al. 2020. Investigating Impact Processes at All Scales: The Moon as a Laboratory.

Courville, S., N.E. Putzig, M.R. Perry, G.W. Patterson, G.A. Morgan, A.J. Gemer, P.C. Sava, et al. 2020. Developing Active Source Seismology for Planetary Science.

Crary, F., G.B. Clark, P. Delamere, C. Dong, R.W. Ebert, C. Harris, G. Hospodarsky, et al. 2020. The Magnetosphere of Jupiter: Moving from Discoveries Towards Understanding.

Crichton, D., N.J. Chanover, L.R. Gaddis, M.K. Gordon, M. Marley, L. Mayorga, L.M. Prockter, et al. 2020. On the Use of Planetary Science Data for Studying Extrasolar Planets.

Crum, R. 2020. Advanced Technology Developments for Europa Lander and Oher In-Situ Ocean World Missions.

Cuk, M., A.K. Virkki, T. Kohout, E. Lellouch, and J.J. Lissauer. 2020. Pathways to Sustainable Planetary Science.

Curry, S., J. Luhmann, C. Gray, and G. Collinson. 2020. Venus and Solar Storms: Solar Energetic Particles, Stream Interaction Regions and Coronal Mass Ejections.

Cutts, J., K. Baines, P. Beauchamp, C. Bower, A. Davis, L. Dorsky, D. Dyar, et al. 2020. Venus Corona and Tessera Explorer (VeCaTEx).

Cutts, J., S. Aslam, S. Atreya, K. Baines, P. Beauchamp, J. Bellan, D.C. Bowman, et al. 2020. Scientific Exploration of Venus with Aerial Platforms.

Czaja, A., A. Corpolongo, A. Gangidine, B. Horgan, L. Kah, J. Osterhout, S. Ruff, et al. 2020. Mars as a Compelling Target in the Continuing Search for Signs of Ancient Extraterrestrial Life.

Dahl, E., S. Brueshaber, R. Cosentino, C. Palotai, N. Rowe-Gurney, R. Sankar, K. Sayanagi, et al. 2020. Ice Giant Atmospheric Science.

Daubar, I., R.A. Beyer, V. Hamilton, A. McEwen, N. Bardabelias, S.M. Brooks, P.K. Byrne, et al. 2020. Extended Missions in Planetary Science: Impacts to Science and the Workforce.

Davidsson, B., J. Brisset, R.T. Daly, T. Denk, A. Ermakov, L. Feaga, M. Gritsevich, et al. 2020. What Do Small Bodies Tell Us About the Formation of the Solar System and the Conditions in the Early Solar Nebula?

Davila, A. 2020. Astrobiology on Mars: Organic Chemical Evolution on an Earth-Like Planet.

de Kleer, K., B. Butler, M. Cordiner, I. de Pater, M. Gurwell, J. Lazio, S. Milam, et al. 2020. Mapping Satellite Surfaces and Atmospheres with Ground-Based Radio Interferometry.

de Pater, I., C. Moeckel, J. Tollefson, B. Butler, K. de Kleer, L. Fletcher, M.A. Gurwell, et al. 2020. Prospects to Study the Ice Giants with the ngVLA.

Deutsch, A., A. Maiti, A. Luspay-Kuti, A. Kereszturi, A. Lucchetti, A. Colaprete, A. Vorburger, et al. 2020. Science Opportunities Offered by Mercury’s Ice-Bearing Polar Deposits.

Dhaliwal, J. 2020. Meteoritical Constraints on Our Solar System and Beyond.

Diniega, S., A. Bramson, P. Buhler, B. Buratti, D. Burr, M. Chojnacki, S. Conway, et al. 2020. Mars as a “Natural Laboratory” for Studying Surface Activity on a Range of Planetary Bodies.

Diniega, S., D. Burr, C.M. Dundas, B. Jackson, M. Mischna, S. Rafkin, I. Smith, et al. 2020. A Critical Gap: In Situ Measurements of Planetary Surface-Atmosphere Interactions Beyond Earth.

Diniega, S., J. Castillo-Rogez, I. Daubar, J. Filiberto, T. Goudge, K. Lynch, A. Rutledge, et al. 2020. Ensuring a Safe and Equitable Workspace: The Importance and Feasibility of a Code of Conduct, Along with Clear Policies Regarding Authorship and Team Membership.

Diniega, S., T. Putzig, S. Byrne, W. Calvin, C. Dundas, L. Fenton, P. Hayne, et al. 2020. White Paper Summary of the Final Report from the Ice and Climate Evolution Science Analysis Group (ICE-SAG).

Ditzler, M., A.C. Rios, M. Nuevo, M. Popovic, R. Mancinelli, J.T. Broddrick, D. Summers, et al. 2020. Beyond Targeted Searches: The Need for System-Level Approaches to Understanding the Connection Between Astrochemistry and the Emergence of Life.

Domagal-Goldman, S., G. Arney, and E.D. Lopez. 2020. Astrobiology as a NASA Grand Challenge.

Donitz, B., K.J. Meech, J. Castillo-Rogez, K.M. Moore, S.W. Courville, S. Ferguson, et al. 2020. New Frontiers Mission Concept Study to Explore Oort Cloud Comets.

Dorsey, J., W. Doggett, G. McGlothin, N. Alexandrov, B.D. Allen, M. Chandarana, J. Cooper, et al. 2020. State of the Profession: NASA Langley Research Center Capabilities/Technologies for Autonomous In-Space Assembly and Modular Persistent Assets.

Dove, J. 2020. Cracks Emerging in NASA’s Discovery Program.

Dreier, C., and B. Nye. 2020. Increasing the Scope of Planetary Defense Activities: Programs, Strategies, and Relevance in a Post-COVID-19 World.

Dreier, C., and B. Nye. 2020. The Search for Life as a Guidepost to Scientific Revolution.

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Hardin, G. 2020. Categorizing Potential Planetary Mission Types.

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Izenberg, N., R.L. McNutt, K.D. Runyon, P.K. Byrne, and A. MacDonald. 2020. Human Assisted Science at Venus: Venus Exploration in the New Human Spaceflight Age.

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Jakosky, B., M. Amato, S. Atreya, D.D. Marais, P. Mahaffy, M. Mumma, M. Tolbert, et al. 2020. Scientific Value of Returning an Atmospheric Sample from Mars.

Jakosky, B., S. Byrne, W. Calvin, S. Curry, B. Ehlmann, J. Eigenbrode, T. Hoehler, et al. 2020. Mars, the Nearest Habitable World—A Comprehensive Program for Future Mars Exploration.

Jawin, E. 2020. Planetary Science Priorities for the Moon in the Decade 2023–2032: Lunar Science Is Planetary Science.

Jawin, E., T. Glotch, R. Watkins, L. Jozwiak, S. Valencia, H. Meyer, R.A. Yingst, et al. 2020. Exploring End-Member Volcanism on the Moon at the Aristarchus Plateau.

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Jolliff, B., N. Petro, D. Moriarty, R. Watkins, J. Head, and R. Potter. 2020. Sample Return from the Moon’s South Pole–Aitken Basin.

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Kane, S., G. Arney, P. Byrne, D. Crisp, S. Domagal-Goldman, C. Goldblatt, D. Grinspoon, et al. 2020. Venus as a Nearby Exoplanetary Laboratory.

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Keane, J., A.A. Ahern, F. Bagenal, A.C.B. Mlinar, K. Basu, P. Becerra, T. Bertrand, et al. 2020. The Science Case for Io Exploration.

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