Publications
Filter Total Items: 988
Lunar grid systems, coordinate systems, and map projections for the Artemis missions and lunar surface navigation Lunar grid systems, coordinate systems, and map projections for the Artemis missions and lunar surface navigation
Authors
Mark T McClernan, Michael L. Dennis, Ike H. Theriot, Trent M. Hare, Brent A. Archinal, Lillian R. Ostrach, Marc A. Hunter, Matthew J. Miller, Ross A. Beyer, Andrew M. Annex, Samuel J. Lawrence
Crater detection dependence on resolution, incidence angle, emission angle, and phase angle Crater detection dependence on resolution, incidence angle, emission angle, and phase angle
Impact crater population detection and measurement is critical to understanding solar system bodies and dynamics. However, the ability to detect all possible craters under different lighting and camera geometries has not been systematically studied except in a few limited cases. This work presents the first systematic study examining crater detection based on resolution, incidence angle...
Authors
Stuart J. Robbins, Michelle R. Kirchoff, Lillian R. Ostrach
The cratering record of Ganymede: Surface ages, impactor populations, and evolutional history The cratering record of Ganymede: Surface ages, impactor populations, and evolutional history
No abstract available.
Authors
Michelle R. Kirchoff, Amy Barr, Michael T. Bland, Veronica Bray, Edgard Rivera-Valentin, Paul M. Schenk
Refined mapping of subsurface water ice on Mars to support future missions Refined mapping of subsurface water ice on Mars to support future missions
Mars has an extensive yet poorly understood cryosphere. Nevertheless, both direct and indirect evidence indicates extensive buried ice across the midlatitudes, including locations where it is presently unstable. While much progress has been made in exploring the processes responsible for ice deposition and preservation during recent climatic fluctuations, a global assessment of the...
Authors
Gareth A Morgan, Nathaniel E Putzig, David M H Baker, Asmin E. Pathare, Colin M. Dundas, Megan Russell, Matthew R Perry, Matthew Chojnacki, Hanna G Sizemore, Ali M Bramson, Eric I Petersen, Stefano Nerozzi, Rachel H Hoover, Zachary M Bain
Wave ripples formed in ancient, ice-free lakes in Gale crater, Mars Wave ripples formed in ancient, ice-free lakes in Gale crater, Mars
Symmetrical wave ripples identified with NASA’s Curiosity rover in ancient lake deposits at Gale crater provide a key paleoclimate constraint for early Mars: At the time of ripple formation, climate conditions must have supported ice-free liquid water on the surface of Mars. These features are the most definitive examples of wave ripples on another planet. The ripples occur in two...
Authors
C.A. Mondro, C.M. Fedo, J.P. Grotzinger, Michael P. Lamb, S. Gupta, W.E. Dietrich, S. G. Banham, C.M. Weitz, P. Gasda, Lauren A. Edgar, D. Rubin, A.B. Bryk, E.S. Kite, G. Caravaca, J. Schieber, A.R. Vasavada
Thicknesses of lava flows in satellite images: Comparison of layered mare units with terrestrial analogs Thicknesses of lava flows in satellite images: Comparison of layered mare units with terrestrial analogs
Recent advances in satellite imaging technology have greatly improved our observations of planetary surfaces. The Lunar Reconnaissance Orbiter (LRO) Narrow Angle Camera (NAC) records images with resolutions on average of 0.5 m per pixel, resolving meter scale features on the surface of the Moon. NAC images have revealed layered deposits, interpreted to be sequences of mare basalt flows...
Authors
M. Elise Rumpf, Heidi Needham, Sarah A. Fagents
Late Amazonian ice near Athabasca Valles, Mars: Recent megaflood or climate change? Late Amazonian ice near Athabasca Valles, Mars: Recent megaflood or climate change?
The Athabasca Valles outflow channel system is among the youngest such channels on Mars, with the Athabasca Valles flood lava (AVFL) covering the channel floor and reaching far beyond. Volcanic rootless cones on the AVFL indicate the presence of H2O in the shallow subsurface at the time of lava emplacement. However, Athabasca Valles are near the equator, where ice would rapidly sublime...
Authors
Colin M. Dundas, Laszlo P. Keszthelyi, Kaj E. Williams
The Europa Imaging System (EIS) investigation The Europa Imaging System (EIS) investigation
The Europa Imaging System (EIS) consists of a Narrow-Angle Camera (NAC) and a Wide-Angle Camera (WAC) that are designed to work together to address high-priority science objectives regarding Europa’s geology, composition, and the nature of its ice shell. EIS accommodates variable geometry and illumination during rapid, low-altitude flybys with both framing and pushbroom imaging...
Authors
E.P. Turtle, A.S. McEwen, G.W. Patterson, C. M. Ernst, C.M. Elder, K.A. Slack, S.E. Hawkins, J. McDermott, H. M. Meyer, R. DeMajistre, R. Espiritu, H. Seifert, J. Niewola, Michael T. Bland, M.K. Becker, J. Centurelli, G.C. Collins, P. Corlies, H. Darlington, I. J. Daubar, C. Derr, C. Detelich, E. Donald, W. Edens, L. Fletcher, C. Gardner, F. Graham, C.J. Hansen, C. Haslebacher, A.G. Hayes, D. Humm, T.A. Hurford, Randolph L. Kirk, N. W. Kutsop, W.J. Lees, D. T. Lewis, S. London, A. Magner, M.A. Mills, A.C. Barr Mlinar, F. Morgan, F. Nimmo, A. Ocasio Milanes, S. Osterman, C.B. Phillips, A. Pommerol, L. Prockter, L.C. Quick, G. Robbins, J.M. Soderblom, B.A. Stewart, A. Stickle, S.S. Sutton, N. Thomas, I. Torres, O.J. Tucker, R.B. Van Auken, K.A. Wilk
Landed planetary sensor model support with the community sensor model Landed planetary sensor model support with the community sensor model
This note describes recent work to develop landed planetary sensor model support conforming to the widely adopted Community Sensor Model (CSM) standard. We describe the CSM specification and its use in the planetary sciences, introduce the test sensors carried aboard the Mars Science Laboratory (MSL) Curiosity Rover, and describe the engineering research requirements fulfilled...
Authors
Jason Laura, Oleg Alexandrov, Adam Paquette
Global survey of paleo-bedforms on Mars Global survey of paleo-bedforms on Mars
Sedimentary processes on Mars have contributed to a plethora of landforms, both ancient and modern. Many of these are aeolian- or fluvial-formed constructs that meet the morphologic criteria for dunes and ripples but are clearly lithified and part of the rock record. This study conducted a survey of Mars using data returned from the High Resolution Imaging Science Experiment (HiRISE) to
Authors
Matthew Chojnacki, Lori K. Fenton, Lauren A. Edgar, Mackenzie D. Day, Christopher S. Edwards, Aaron R Weintraub, Amber L. Gullikson, Matt Telfer
Assessing community needs for terrestrial analog studies Assessing community needs for terrestrial analog studies
Authors
Lauren A. Edgar, M. Elise Rumpf, Skinner, Amber L. Gullikson, Laszlo P. Keszthelyi, Marc A. Hunter, Tenielle Gaither
Intense alteration on early Mars revealed by high-aluminum rocks at Jezero Crater Intense alteration on early Mars revealed by high-aluminum rocks at Jezero Crater
The NASA Perseverance rover discovered light-toned float rocks scattered across the surface of Jezero crater that are particularly rich in alumina ( ~ 35 wt% Al2O3) and depleted in other major elements (except silica). These unique float rocks have heterogeneous mineralogy ranging from kaolinite/halloysite-bearing in hydrated samples, to spinel-bearing in dehydrated samples also...
Authors
C. Royer, C.C. Bedford, J.R. Johnson, B.H.N. Horgan, A. Broz, O. Forni, S. Connell, R. C. Wiens, L. Mandon, B.S. Kathir, E.M. Hausrath, A. Udry, J.M. Madariaga, E. Dehouck, Ryan B. Anderson, P.S.A. Beck, O. Beyssac, É. Clavé, S.M. Clegg, E. Cloutis, T. Fouchet, Travis S.J. Gabriel, B.J. Garczynski, A. Klidaras, H. T. Manelski, L.E. Mayhew, J. Nunez, A.M. Ollila, S.E. Schröder, J.I. Simon, U. Wolf, K.M. Stack, A. Cousin, S. Maurice