Publications
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Analysis of a cryolava flow-like feature on Titan Analysis of a cryolava flow-like feature on Titan
This paper reports on the analysis of the highest spatial resolution hyperspectral images acquired by the Visual and Infrared Mapping Spectrometer (VIMS) onboard the Cassini spacecraft during its prime mission. A bright area matches a flow-like feature coming out of a caldera-like feature observed in Synthetic Aperture Radar (SAR) data recorded by the Cassini radar experiment [Lopes et...
Authors
L. Le Corre, Stéphane Le Mouélic, Christophe Sotin, J. #NAME? Combe, S. Rodriguez, J. W. Barnes, R. H. Brown, B. J. Buratti, R. Jaumann, J. Soderblom, L.A. Soderblom, R. Clark, K. H. Baines, P. D. Nicholson
Shallow radar (SHARAD) sounding observations of the Medusae Fossae Formation, Mars Shallow radar (SHARAD) sounding observations of the Medusae Fossae Formation, Mars
The SHARAD (shallow radar) sounding radar on the Mars Reconnaissance Orbiter detects subsurface reflections in the eastern and western parts of the Medusae Fossae Formation (MFF). The radar waves penetrate up to 580 m of the MFF and detect clear subsurface interfaces in two locations: west MFF between 150 and 155° E and east MFF between 209 and 213° E. Analysis of SHARAD radargrams...
Authors
Lynn M. Carter, Bruce A. Campbell, Thomas R. Watters, Roger J. Phillips, Nathaniel E. Putzig, Ali Safaeinili, Jeffrey J. Plaut, Chris Okubo, Anthony F. Egan, Roberto Seu, Daniela Biccari, Roberto Orosei
Observations of periglacial landforms in Utopia Planitia with the High Resolution Imaging Science Experiment (HiRISE) Observations of periglacial landforms in Utopia Planitia with the High Resolution Imaging Science Experiment (HiRISE)
The region of western Utopia Planitia (80-105 degreesE, 40-55 degrees N) displays several types of landforms similar to Earth periglacial features, including scallop-shaped depressions and networks of polygonal terrains. The scalloped depressions have been proposed to originate from thermokarstic processes such as sublimation and/or melting of near-surface ground ice. Using HiRISE...
Authors
A. Lefort, P.S. Russell, N. Thomas, A. S. McEwen, C. M. Dundas, Randolph L. Kirk
Relative age of interior layered deposits in southwest Candor Chasma based on high-resolution structural mapping Relative age of interior layered deposits in southwest Candor Chasma based on high-resolution structural mapping
High‐resolution topography generated from stereo HiRISE (High‐Resolution Imaging Science Experiment) imagery reveals the meter‐scale structure of interior layered deposits (ILD) in southwest Candor Chasma. This study seeks to determine the age of the local ILD relative to any normal faults that can be attributed to chasma formation. The study area is located near the contact of these ILD...
Authors
Chris H. Okubo, Kevin W. Lewis, Alfred S. McEwen, Randolph L. Kirk
Surface processes recorded by rocks and soils on Meridiani Planum, Mars: Microscopic Imager observations during Opportunity's first three extended missions Surface processes recorded by rocks and soils on Meridiani Planum, Mars: Microscopic Imager observations during Opportunity's first three extended missions
The Microscopic Imager (MI) on the Mars Exploration Rover Opportunity has returned images of Mars with higher resolution than any previous camera system, allowing detailed petrographic and sedimentological studies of the rocks and soils at the Meridiani Planum landing site. Designed to simulate a geologist's hand lens, the MI is mounted on Opportunity's instrument arm and can resolve...
Authors
Kenneth E. Herkenhoff, John P. Grotzinger, Andrew H. Knoll, Scott M. McLennan, Catherine M. Weitz, Aileen Yingst, Robert Anderson, Brent A. Archinal, Raymond E. Arvidson, Janet M. Barrett, Kris J. Becker, James F. Bell, Charles Budney, Mary G. Chapman, Debbie Cook, Bethany L. Ehlmann, Brenda Franklin, Lisa R. Gaddis, Donna M. Galuszka, Patricia A. Garcia, Paul E. Geissler, Trent M. Hare, Elpitha Howington-Kraus, Jeffrey R. Johnson, Laszlo P. Keszthelyi, Randolph L. Kirk, Peter Lanagan, Ella M. Lee, Craig Leff, Justin N. Maki, Kevin F. Mullins, Timothy J. Parker, Bonnie L. Redding, Mark R. Rosiek, Michael H. Sims, Laurence A. Soderblom, Nicole Spanovich, Richard Springer, Steven W. Squyres, Daniel A. Stolper, Robert M. Sucharski, Tracie L. Sucharski, Robert Sullivan, James M. Torson
In-situ observations of the physical properties of the Martian surface In-situ observations of the physical properties of the Martian surface
The physical properties of rocks and soils on the surface of Mars have been investigated by several landed spacecraft. Studies of these physical properties constrain interpretation of Martian geologic processes and provide engineering data for future mission planning. As on Earth, these properties vary considerably from place to place, and provide constraints on the origin and evolution...
Authors
Kenneth E. Herkenhoff, M. P. Golombek, E.A. Guinness, J.B. Johnson, A. Kusack, L. Richter, R.J. Sullivan, S. Gorevan
First in situ investigation of a dark wind streak on Mars First in situ investigation of a dark wind streak on Mars
Prominent low‐albedo wind streaks issue from embayments at the north end of Victoria crater in Meridiani Planum, the site of surface investigations by the Mars Exploration Rover Opportunity. Opportunity was sent to examine the darkest of these wind streaks and compare it to the adjacent soil in the brighter corridor between the streaks. Two nearby sites inside and outside of the streak...
Authors
Paul E. Geissler, J. R. Johnson, R. Sullivan, Kenneth E. Herkenhoff, D. W. Mittlefehldt, Robin L. Fergason, D. Ming, R. Morris, S. Squyres, Laurence A. Soderblom, M. Golombek
Spirit Mars Rover Mission to the Columbia Hills, Gusev Crater: Mission overview and selected results from the Cumberland Ridge to Home Plate Spirit Mars Rover Mission to the Columbia Hills, Gusev Crater: Mission overview and selected results from the Cumberland Ridge to Home Plate
This paper summarizes the Spirit rover operations in the Columbia Hills of Gusev Crater from sols 513 to 1476 and provides an overview of selected findings that focus on synergistic use of the Athena Payload and comparisons to orbital data. Results include discovery of outcrops (Voltaire) on Husband Hill that are interpreted to be altered impact melt deposits that incorporated local...
Authors
R. E. Arvidson, S. W. Ruff, R.V. Morris, D. W. Ming, L.S. Crumpler, A. S. Yen, S. W. Squyres, R.J. Sullivan, J.F. Bell, N.A. Cabrol, B. C. Clark, W. H. Farrand, R. Gellert, R. Greenberger, J. A. Grant, E.A. Guinness, Kenneth E. Herkenhoff, J.A. Hurowitz, J. R. Johnson, G. Klingelhoefer, K. W. Lewis, R. Li, T.J. McCoy, J. Moersch, H.Y. McSween, S.L. Murchie, M. Schmidt, Christian Schroeder, A. Wang, S. Wiseman, M.B. Madsen, W. Goetz, S. M. McLennan
First in situ investigation of a dark wind streak on Mars First in situ investigation of a dark wind streak on Mars
[1] Prominent low-albedo wind streaks issue from embayments at the north end of Victoria crater in Meridiani Planum, the site of surface investigations by the Mars Exploration Rover Opportunity. Opportunity was sent to examine the darkest of these wind streaks and compare it to the adjacent soil in the brighter corridor between the streaks. Two nearby sites inside and outside of the...
Authors
Paul E. Geissler, J.R. Johnson, R. Sullivan, Kenneth E. Herkenhoff, K Mittlefeldt, Robin L. Fergason, D. W. Ming, R. I. G. Morrison, S. W. Squyres, Laurence A. Soderblom, M. P. Golombek
Implications for Martian polar processes, Ch. 25 Implications for Martian polar processes, Ch. 25
No abstract available.
Authors
Timothy N. Titus, W. M. Calvin, H. H. Kieffer, Yves Langevin, Thomas H. Prettyman
Titan's rotation reveals an internal ocean and changing zonal winds Titan's rotation reveals an internal ocean and changing zonal winds
Cassini radar observations of Saturn's moon Titan over several years show that its rotational period is changing and is different from its orbital period. The present-day rotation period difference from synchronous spin leads to a shift of ∼0.36° per year in apparent longitude and is consistent with seasonal exchange of angular momentum between the surface and Titan's dense superrotating
Authors
Ralph D. Lorenz, Bryan W. Stiles, Randolph L. Kirk, Michael D. Allison, Paolo Persi del Marmo, Luciano Iess, Jonathan I. Lunine, Steven J. Ostro, Scott Hensley
Introduction to planetary and space science special issue: Mars polar processes Introduction to planetary and space science special issue: Mars polar processes
No abstract available.
Authors
Timothy N. Titus, Anthony Colaprete, Thomas H. Prettyman