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Venus: a Natural Volcanological Laboratory
No full textHere I identify the next steps that would unleash the potential of the vast range of volcanic phenomena recorded at the surface of Venus to inform, or perhaps transform, studies of Venus' evolution and the volcanic expressions of inner solar system bodies in general
Apollo Passive Seismic Experiment Expanded Event Catalog
No full textThis dataset contains GIS files that can be used to visualize the 3-d locations of lunar seismic events.This document contains information to explain the contents of the archive, which is submitted as a supplement to the integrated catalog of lunar seismic events that was delivered to the PDS, available here: https://pds-geosciences.wustl.edu/missions/apollo/seismic_event_catalog.htm. Our team integrated moonquake locations from the catalog into the GIS platform using ArcGlobe, an extension of ArcGIS . Since ArcGIS is commercial software, these files are not compliant with PDS standards. However, as they were a named deliverable from the PDART award, we chose to archive them with the Lunar and Planetary Institute, so they would be available for use by the planetary community and broader public.NASA Planetary Data Archiving, Restoration, and Tools (PDART) Progra
Impact shock origin of diamonds in ureilite meteorites
Full text linkWe found no evidence that formation of micrometer(s)-sized diamonds or associated Fe-S-P phases in ureilites require high static pressures and long growth times, which makes it unlikely that any of the diamonds in ureilites formed in bodies as large as Mars or Mercury.Fabrizio Nestola, Cyrena A. Goodrich, Marta Morana, Anna Barbaro, Ryan S. Jakubek, Oliver Christ, Frank E. Brenker, M. Chiara Domeneghetti, M. Chiara Dalconi, Matteo Alvaro, Anna M. Fioretti, Konstantin D. Litasov, Marc D. Fries, Matteo Leonii, Nicola P. M. Casati, Peter Jenniskens, and Muawia H. Shadda
The Habitat of the Nascent Chicxulub Crater
Full text linkThe newly formed Chicxulub crater was rapidly filled by seawater then disturbed by tsunami and seiche waves. Sedimentary layers deposited as wave energy declined provide a unique window into the environment of the nascent crater in the months and years to millennia after the impact.T. J. Bralower, J. Cosmidis, M. S. Fantle, C. M. Lowery, B. H. Passey, S. P. S. Gulick, J. V. Morgan, V. Vajda, M. T. Whalen, A. Wittmann, N. Artemieva, K. Farley, S. Goderis, E. Hajek, P. J. Heaney, D. A. Kring, S. L. Lyons, C. Rasmussen, E. Sibert, F. J. Rodríguez Tovar, G. Turner‐Walker, J. C. Zachos, J. Carte, S. A. Chen, C. Cockell, M. Coolen, K. H. Freeman, J. Garber, M. Gonzalez, J. L. Gray, K. Grice, H. L. Jones, B. Schaefer, J. Smit, S. M. Tiko
Apophis T–9 Years 2020 (LPI Contrib. No. 2242)
No full textExplores the dynamical details and corresponding science opportunities presented by the April 13, 2029 near-miss passage of the asteroid Apophis. Knowledge is the first line of planetary defense, and the 2029 Apophis encounter is a once-per-thousand-year opportunity for investigating an asteroid as large as 350 meters passing within 6 Earth-radii. Time is of the essence as we have less than a decade to plan Earth-based and possible in-situ missions whose measurements can deliver unprecedented detailed knowledge on the physical nature of Apophis as the prototype example (poster child) of potentially hazardous asteroids.Conveners Richard P. Binzel, Patrick MichelPARTIAL CONTENTS: Multiwavelength RADAR Observations of Apophis / M. C. Nolan, L. A. M. Benner, M. Brozovič, M. W. Busch, J. D. Giorgini, D. C. Hickson, E. S. Howell, S. E. Marshall, S. P. Naidu, E. G. Rivera-Valentin, P. A. Taylor, F. C. F. Venditti, and A. K. Virkki -- How Unique is Almahata Sitta and How Relevant is It to Bennu? / J. O. Nolau, T. D. Swindle, H. Campins, and H. C. Connolly -- Thermal Imager to Reveal Surface Physical State of Asteroids / T. Okada, T. Fukuhara, and M. Yoshikawa -- An Estimation of the Yarkovsky Effect on Asteroid (99942) Apophis via High-Order Taylor Polynomials / J. A. Pérez-Hernández and L. Benet -- Post-Flyby Observations of Apophis from the Moon / D. Polishook -- Physical Characterization of 2020 AV2, the First Known Asteroid Orbiting Inside Venus Orbit / M. Popescu, O. Vaduvescu, J. de León, C. de la Fuente Marcos, R. de la Fuente Marcos, J. Licandro, V. Pinter, and O. Zamora -- APOPHIS Express, a Unique Opportunity for Visiting APOPHIS in -- J. Y. Prado, D. Hestroffer, and A. Herique -- Potential Mission Concepts for Characterizing the Potentially Hazardous Near-Earth Asteroid (99942) Apophis / C. A. Raymond, J. F. Bell, R. S. Park, D. Landau, S. R. Chesley, K. Reh, P. W. Chodas, and M. Brozovič -- Why We Should, and Should Not, Visit Apophis / A. S. Rivkin -- Non-Contact Seismology on Asteroid 99942 Apophis / P. Sava and E. Asphaug -- The Abrupt Alteration of Apophis' Spin State and Its Implications / D. J. Scheeres, C. Benson, M. Brozovič, S. Chesley, P. Pravec, and P. Scheirich -- Stationkeeping About Apophis Through Its 2029 Earth Flyby / D. J. Scheeres, A. Meyer, and A. B. Davis -- Charming Apophis — HUMMINGBIRDsCHARM (HsC) Interview with Apophis / D. Scheld, C. Dreyer, D. Durda, B. Farrand, and P. Abell -- Strength of LL Chondrites in Laboratory Deformation Experiments with Applications to Internal Structure of 99942 Apophis / C. Seltzer, M. Peč, H. O. Ghaffari, and R. P. Binzel -- A Mission Concept for Measuring Changes in Apophis During Earth Encounter / D. E. Smith, X. Sun, E. Mazarico, D. Cremons, M. T. Zuber, G. A. Neumann, S. J. Goossens, M. K. Barker, D. Mao, and J. W. Head
Global 200 meter 3-color Mosaic of Europa
No full text3-color global integrated mosaic of Europa featuring all resolved images of the surface using Galileo and Voyager images.A new global 3-color base map mosaic of Europa has been produced by Dr. Paul Schenk at the Lunar and Planetary Institute, using Galileo and Voyager images. Geographic control uses updated image camera kernels for all Galileo, Voyager and New Horizons images produced but he author. A final version will be posted late in 2020 which will incorporate any final minor adjustments to the control information
The Importance of Ground-Based Radar Observations for Planetary Exploration
No full textA white paper submitted to the Planetary Science and Astrobiology Decadal Survey 2023-2032. Here, we discuss several community-identified priority science questions that ground-based radar studies are particularly suited to help resolve in the next decade
Resolving the water cycle on a salty Mars: Planetary science and astrobiology exploration strategies for the next decade
No full textA white paper submitted to the Planetary Science and Astrobiology Decadal Survey 2023-2032. Characterizing the dynamics of the present-day Martian water cycle is paramount to understanding climatic processes, water ice stability, the potential for in-situ resource utilization, and present-day habitability
Habitability Models for Planetary Sciences
No full textIn this white paper, we suggest a mass-energy habitability model as an example of how to adapt and expand the models used by ecologists to the astrobiology field. We propose to implement these models into a NASA Habitability Standard (NHS) to standardize the habitability objectives of planetary missions.Abel Méndez, Edgard G. Rivera-Valentín, Dirk Schulze-Makuch, Justin Filiberto, Ramses Ramírez, Tana E. Wood, Alfonso Dávila, Chris McKay, Kevin Ortiz Ceballos, Marcos Jusino-Maldonado, Guillermo Nery, René Heller, Paul Byrne, Michael J. Malaska, Erica Nathan, Marta Filipa Simões, André Antunes, Jesús Martínez-Frías, Ludmila Carone, Noam R. Izenberg, Dimitra Atri, Humberto Itic Carvajal Chitty, Priscilla Nowajewski-Barra, Frances Rivera-Hernández, Corine Brown, Kennda Lynch, David Catling, Jorge I. Zuluaga, Juan F. Salazar, Howard Chen, Grizelle González, Madhu Kashyap Jagadeesh, Rory Barnes, Charles S. Cockell, Jacob Haqq-Misr
Venus Petrology : The Need for New Data
No full textWe encourage the Decadal Panel to continue its emphasis on the surface of Venus as a spacecraft target and to promote the continued development of technologies that can collect petrologic data in Venus' challenging environment