1773 research outputs found
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Astromaterials Data Management (2021)
No full textThe workshop will provide an opportunity to present and discuss all the current projects and initiatives for astromaterials sample tracking and data management. It will bring together researchers, scientists and software engineers working on systems to track samples between curation and sample scientists, and the management, visualization and archiving of datasets resulting from the analysis of planetary materials. Those include both mission-returned samples and astromaterials (meteorites, micrometeorites and interplanetary dust particles). The organizers invite contributions spanning all these related topics, including data management for past (e.g., Apollo), current (e.g., Hayabusa2, OSIRIS-REx, ANGSA and Chang'e 5) and future (e.g., Mars Sample Return, MMX) sample-return missions. Contributions on the standards and requirements for data publication and open-access archiving are also encouraged. In particular, we plan keynote presentations and special breakout sessions on new and current projects for sample tracking and data visualization. In addition to sample-return missions and projects associated with NASA curated samples, we will also encourage participation of meteorite curations at major organizations/institutions/museums.Convener: Pierre Haenecour, University of Arizon
Tiger: concept study for a new frontiers Enceladus habitability mission
No full textHerein we introduce Tiger, a mission concept developed during the 2020 Planetary Science Summer School at NASA's Jet Propulsion Laboratory. Tiger is a flyby mission that would help further constrain the habitability of Enceladus through two science objectives: (1) determine whether Enceladus's volatile inventory undergoes synthesis of complex organic species that are evidence for a habitable ocean, and (2) determine whether Enceladus's plume material is supplied directly from the ocean or if it interfaces with other reservoirs within the ice shell. To address the science goals in a total of eight flybys, Tiger would carry a four-instrument payload, including a mass spectrometer, a single-band ice-penetrating radar, an ultraviolet imaging spectrograph, and an imaging camera. We discuss Tiger's instrument and mission architecture, as well as the trades and challenges associated with a habitability-focused New Frontiers–class flyby mission to Enceladus.Elizabeth M. Spiers, Jessica M. Weber, Chandrakanth Venigalla, Andrew M. Annex, Christine P. Chen, Carina Lee, Patrick Clifton Gray, Kathleen J. McIntyre, Jodi R. Berdis, Shane R. Carberry Mogan, Paula do Vale Pereira, Saroj Kumar, William O'Neill, Elizabeth A. Czajka, Perianne E. Johnson, Alyssa Pascuzzo, Sindhoora Tallapragada, Deanna Phillips, Karl Mitchell, Alfred Nash, Jennifer Scully and Leslie Lowe
Chromium Isotopic Evidence for Mixing of NC and CC Reservoirs in Polymict Ureilites: Implications for Dynamical Models of the Early Solar System
Full text linkNucleosynthetic isotope anomalies show that the first few million years of solar system history were characterized by two distinct cosmochemical reservoirs, CC (carbonaceous chondrites and related differentiated meteorites) and NC (the terrestrial planets and all other groups of chondrites and differentiated meteorites), widely interpreted to correspond to the outer and inner solar system, respectively. At some point, however, bulk CC and NC materials became mixed, and several dynamical models offer explanations for how and when this occurred. We use xenoliths of CC materials in polymict ureilite (NC) breccias to test the applicability of such models.Cyrena A. Goodrich, Matthew E. Sanborn, Qing-Zhu Yin, Issaku Kohl, David Frank, R. Terik Daly, Kevin J. Walsh, Michael E. Zolensky, Edward R. D. Young, Peter Jenniskens, and Muawia H. Shadda
A Proposed Geobiology-Driven Nomenclature for Astrobiological In Situ Observations and Sample Analyses
Full text linkThe purpose of this article is to generate an improved nomenclature for terrestrial features that have mineral/microbial interactions within structures and to confirm which features can only exist from life (biotic), features that are modified by biological processes (biogenic), features that life does not affect (abiotic), and properties that can exist or not regardless of the presence of biology (abiogenic).Scott M. Perl, Aaron J. Celestian, Charles S. Cockell, Frank A. Corsetti, Laura M. Barge, David Bottjer, Justin Filiberto, Bonnie K. Baxter, Isik Kanik, Sally Potter-McIntyre, Jessica M. Weber, Laura E. Rodriguez, and Mohit Melwani Daswan
Human-assisted sample return mission at the Schrödinger basin, lunar farside using a new geologic map and rover traverses
Full text linkThe Schrödinger basin on the south polar lunar far side has been highlighted as a promising target for future exploration. This report provides a high-resolution geologic map in the southwest peak-ring (SWPR) area of the Schrödinger basin, emphasizing structural features and detailed mapping of exposed outcrops within the peak ring. Outcrops are correlated with mineralogical data from the Moon Mineralogical Mapper instrument.E. C. Czaplinski, E. M. Harrington, S. K. Bell, G. D. Tolometti, B. E. Farrant, V. T. Bickel, C. I. Honniball, S. N. Martinez, A. Rogaski, H. M. Sargeant, and D. A. Krin
Surface Energy Budget, Mars Science Laboratory, Mars
No full textA description of this dataset can be found in the file README.docxThis dataset contains all the values necessary to reproduce each figure shown in the manuscript: Martinez et al., 2021, The Surface Energy Budget at Gale Crater during the first 2500 sols of the Mars Science Laboratory mission, JGR:Planets (under review).The generation of this dataset was supported by Jet Propulsion Laboratory grant number 1449038 and LPI/USRA Subaward No. Subk00011877
Topography and Permanently Shaded Regions (PSRs) of the Moon's South Polar Nearside
No full textThis map is based on data released by the Lunar Reconnaissance Orbiter Lunar Orbiter Laser Altimeter (LOLA). The map is centered at -87°S, 0°E and shows the LOLA 20-m elevation product (NASA Goddard Space Flight Center; Smith et al., 2010; Smith et al., 2017). The elevation data are overlain on a derived hillshade with solar azimuth 45°W and solar elevation 45°. Permanently shaded Regions (PSRs) larger than 10 km2 digitized by Arizona State University and determined by Mazarico et al. (2011) are shown with hatch markings. 1000-m elevation contours (relative to global radius) are shown as white lines with elevations marked (black numbers). Spot elevations are labeled in white. Polar stereographic projection is used with scale true at the pole. Selected feature names are included on the map.This map is a product of the LPI Regional Image Facility: Julie Stopar and David Krin
Prominent volcanic source of volatiles in the south polar region of the Moon
Full text linkGas-rich discharges of magma produced pyroclastic vents on the lunar surface. Calculations suggest those pyroclastic vents repeatedly generated 1012 to 1015 g of H2O and CO + CO2 for pyroclastic volumes of 10 to 500 km3 early in lunar history, particularly during the first billion years of lunar history. Some of those volatiles migrated to the lunar poles where they could be trapped in permanently shadowed regions (PSRs). The largest indigenous source of volatiles in the south polar region was volcanism that occurred on the floor of the Schrödinger impact basin.David A. Kring, Georgiana Y. Kramer, D. Benjamin J. Bussey, Dana M. Hurley, Angela M. Stickle, Carolyn H. van der Boger
Topographic map of Triton combining both stereo and shape-from-shading information
No full textTopographic map of part of Triton combining both stereo and shape-from-shading information. Description in and citation when using data: Schenk et al., (2021) Triton: Topography and Geology of a Probable Ocean World with Comparison to Pluto and Charon, Remote Sensing, 13, 3476-3490
Shaping of the Present-Day Deep Biosphere at Chicxulub by the Impact Catastrophe That Ended the Cretaceous
Full text linkWe report on the effect of the end-Cretaceous impact event on the present-day deep microbial biosphere at the impact site. IODP-ICDP Expedition 364 drilled into the peak ring of the Chicxulub crater, México, allowing us to investigate the microbial communities within this structure. Increased cell biomass was found in the impact suevite, which was deposited within the first few hours of the Cenozoic, demonstrating that the impact produced a new lithological horizon that caused a long-term improvement in deep subsurface colonization potential.Charles S. Cockell, Bettina Schaefer, Cornelia Wuchter, Marco J. L. Coolen, Kliti Grice, Luzie Schnieders, Joanna V. Morgan, Sean P. S. Gulick, Axel Wittmann, Johanna Lofi, Gail L. Christeson, David A. Kring, Michael T. Whalen, Timothy J. Bralower, Gordon R. Osinski, Philippe Claeys, Pim Kaskes, Sietze J. de Graaff, Thomas Déhais, Steven Goderis, Natali Hernandez Becerra, Sophie Nixon and IODP-ICDP Expedition Scientist