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Slope Map of the Moon's South Pole (85°S to Pole)
No full textThis map is based on data collected by the Lunar Orbiter Laser Altimeter (LOLA) onboard the Lunar Reconnaissance Orbiter (LRO). The map shows slopes derived from the LOLA 10-m elevation product (NASA Goddard Space Flight Center; Smith et al., 2010; Smith et al., 2017). The slope is represented with four traditional colors 0° to 5° (light green), 5° to 10° (bright green), 10° to 15° (dark green), 15° to 20° (yellow), and >20° (red). The map covers the region from latitude 85°S to the pole on the rim of Shackleton crater. Slope data are overlain on a derived hillshade with solar azimuth 45°W and solar elevation 45°.Center for Lunar Science and ExplorationA product of the Exploration Science Summer Intern Program: Harish, Venkata Satya Kumar Animireddi, Natasha Barrett, Sarah Boazman, Aleksandra Gawronska, Cosette Gilmour, Samuel Halim, Kathryn McCanaan, Jahnavi Shah, and David Kring
Top five elements in the crust of Mars
No full textThe front of the graphic includes a picture of the planet, a histogram showing the abundance of the Top 5 elements at that planet, and an outline of the Periodic Table highlighting the location of those elements on the table. The back of the graphic features a biography of a planetary scientist who studies the planet and a short discussion written by the scientist of what makes that planet chemically unique in the solar system
Topographic Map of the Moon's South Pole (85°S to Pole)
No full textThis map is based on data released by the Lunar Reconnaissance Orbiter Lunar Orbiter Laser Altimeter (LOLA). The map is centered on the south pole and shows the LOLA 20-m elevation product between 85°S and the pole (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°. Polar stereographic projection is used with scale true at the pole. Feature names are included on the map
The First Billion Years: Habitability 2019 (LPI Contrib. No. 2134)
No full textThis topical conference on Habitability, the fourth and final installment of the LPI's The First Billion Years series, focuses on habitability and producing conditions conducive to life, the emergence of life on Earth, the potential for the emergence of life on other solar system bodies, and extensions to extrasolar systems. Continuing with the goal of The First Billion Years initiative, this conference is intended to foster multi- and interdisciplinary discussion on the processes and physical conditions that affected the development of potentially habitable environments during the first billion years, how such environments evolved over time, and how such ideas may be tested with current and future laboratory measurements, field studies, astronomical observations, and spacecraft missions.Institutional Support Lunar and Planetary Institute, Universities Space Research Association, NASA Topical Workshops, Symposia, and Conferences ProgramConvener Edgard G. Rivera-Valentín, USRA/Lunar and Planetary Institute ; Science Organizing Committee Giada Arney, NASA Goddard Space Flight Center [and 13 others]PARTIAL CONTENTS: Trace Element and Co Concentrations in 2.7 Ga Archean Metasedimentary Rocks of the Cherry Creek Suite, Gravelly Range, Montana, USA / C. A. Hotujec-Kantner--The Occurrence of Planets in the Abiogenesis Zone / M. Jusino and A. Mendez--Lessons from Early Earth: UV Surface Environment of Earth-Like Planets: Comparing Close-by M-Star Planets to Earth Through Geological Evolution / L. Kaltenegger, J. O'Malley-James, and S. Rugheimer--Updated Status of the Impact - Origin of Life Hypothesis / D. A. Kring--The Origins Space Telescope and the Quest to Understand Habitability / D. Leisawitz--The Pilot Valley Basin, Utah: Model System for Studying Subsurface Life on Early Earth, Mars, and Beyond / K. L. Lynch--Our First Billion Years of Astrobiology: Life's Earliest Relationships with the Environment / T. W. Lyons and K. L. Rogers--From Messy Chemistry to the Origins of Life / I. Mamajanov--Understanding the Effects of Asteroid Collisions Across Earth's Great Oxidation 3.5-2 Ga / S. Marchi, B. Black, N. Drabon, D. Ebel, R. Fu, B. Johnson, T. Schulz, and K. Wuennemann--Gamma Irradiation of Mixtures of L-Aspartic Acid and Na-Montmorillonite: Relevance in Homochirality Studies and Origin of Life / A. L. Meléndez-López, M. F. García-Hurtado, A. Negrón-Mendoza, S. Ramos-Bernal, and A. Heredia--Organic Molecule Concentration by Early Differentiation, and Dilution by Later Tidal Dissipation in Icy Ocean Worlds / M. Melwani Daswani and S. D. Vance--The Diversity and Distribution of Habitable Worlds / A. Mendez--Arecibo REDS: The Stellar Activity of Stars with Potentially Habitable Planets / K. N. Ortiz-Ceballos, A. Mendez, J. Zuluaga, R. Heller, D. Alexander, and A. Pacini--An Increase in Phosphorus Availability from Redox-Induced Changes by Water-Rock Interactions / M. A. Pasek--Photobiology and Biogenic Preservation Comparisons Between Pleistocene Evaporite Beds and Buried Permian Brines / S. M. Perl, B. K. Baxter, A. J. Celestian, C. S. Cockell, A. L. Sessions, P. Tasoff, S. J. Crucilla, and F. A. Corsetti
Seasonal Variations in Atmospheric Composition as Measured in Gale Crater, Mars
Get PDFThe atmosphere of Mars is made up of primarily carbon dioxide, and during the Martian year, the barometric pressure is known to cycle up and down substantially as this carbon dioxide freezes out and then is rereleased from polar caps. The Mars Science Laboratory Curiosity rover has now acquired atmospheric composition measurements at the ground over multiple years, capturing the variations in the major gases over several seasonal cycles for the first time. With the Sample Analysis at Mars instrument, the annual average composition in Gale Crater was measured as 95.1% carbon dioxide, 2.59% nitrogen, 1.94% argon, 0.161% oxygen, and 0.058% carbon monoxide. However, the abundances of some of these gases were observed to vary up to 40% throughout the year due to the seasonal cycle.Melissa G. Trainer; Michael H. Wong; Timothy H. McConnochie; Heather B. Franz; Sushil K. Atreya; Pamela G. Conrad; Franck Lefèvre; Paul R. Mahaffy; Charles A. Malespin; Heidi L.K. Manning; Javier Martín‐Torres; Germán M. Martínez; Christopher P. McKay; Rafael Navarro‐González; Álvaro Vicente‐Retortillo; Christopher R. Webster; María‐Paz Zorzan
The Influence of Water on the Strength of Olivine Dislocation Slip Systems
Get PDFTo measure the influence of water fugacity on the relative strengths of olivine dislocation slip systems, we carried out a series of deformation experiments on olivine single crystals under either anhydrous or hydrous conditions. The crystals were oriented to activate either the (010)[100], (001)[100], or (100)[001] dislocation slip systems using a direct shear geometry, which allows for isolation of single slip systems, in contrast to the multiple systems activated in experiments carried out in compression. Post‐deformation electron backscatter diffraction analyses reveal orientation gradients consistent with deformation occurring via the motion of dislocations on the activated slip systems.Jacob Tielke Julian Mecklenburgh Elisabetta Mariani John Wheele
Top five elements on the surface of the Moon
No full textThe front of the graphic includes a picture of the planet, a histogram showing the abundance of the Top 5 elements at that planet, and an outline of the Periodic Table highlighting the location of those elements on the table. The back of the graphic features a biography of a planetary scientist who studies the planet and a short discussion written by the scientist of what makes that planet chemically unique in the solar system
Top five elements in the atmosphere of Neptune
No full textThe front of the graphic includes a picture of the planet, a histogram showing the abundance of the Top 5 elements at that planet, and an outline of the Periodic Table highlighting the location of those elements on the table. The back of the graphic features a biography of a planetary scientist who studies the planet and a short discussion written by the scientist of what makes that planet chemically unique in the solar system
Topographic Map of the Moon's South Pole (80°S to Pole)
No full textThis map is based on data released by the Lunar Reconnaissance Orbiter Lunar Orbiter Laser Altimeter (LOLA). The map is centered on the south pole and shows the LOLA 20-m elevation product between 80°S and the pole (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°. Polar stereographic projection is used with scale true at the pole. Feature names are included on the map
Topography and Permanently Shaded Regions (PSRs) of the Moon's South Pole
No full textThis map is based on data released by the Lunar Reconnaissance Orbiter Lunar Orbiter Laser Altimeter (LOLA). The map is centered on the south pole and shows the LOLA 5-m elevation product between 85°S and the pole (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 as gray outlines. Polar stereographic projection is used with scale true at the pole. Feature names are included on the map. [Note: This map was not controlled using the techniques of Glaser et al. (2014, 2018), thus there are artifacts in LOLA track offsets.