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Roger J. Phillips
Researcher at Washington University in St. Louis
Publications - 327
Citations - 23295
Roger J. Phillips is an academic researcher from Washington University in St. Louis. The author has contributed to research in topics: Mars Exploration Program & Crust. The author has an hindex of 75, co-authored 325 publications receiving 20830 citations. Previous affiliations of Roger J. Phillips include University of Washington & Lunar and Planetary Institute.
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Journal ArticleDOI
Mars Orbiter Laser Altimeter: Experiment summary after the first year of global mapping of Mars
David E. Smith,Maria T. Zuber,Herbert Frey,James B. Garvin,James W. Head,Duane O. Muhleman,Gordon H. Pettengill,Roger J. Phillips,Sean C. Solomon,H. Jay Zwally,W. Bruce Banerdt,Thomas C. Duxbury,Matthew P. Golombek,Frank G. Lemoine,Gregory A. Neumann,David D. Rowlands,Oded Aharonson,Peter G. Ford,Anton B. Ivanov,Catherine L. Johnson,Patrick J. McGovern,James B. Abshire,Robert S. Afzal,Xiaoli Sun +23 more
TL;DR: The Mars Orbiter Laser Altimeter (MOLA) has been used to measure the topography, surface roughness, and 1.064-μm reflectivity of Mars and the heights of volatile and dust clouds as mentioned in this paper.
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The Global Topography of Mars and Implications for Surface Evolution
David E. Smith,Maria T. Zuber,Maria T. Zuber,Sean C. Solomon,Roger J. Phillips,James W. Head,James B. Garvin,W. Bruce Banerdt,Duane O. Muhleman,Gordon H. Pettengill,Gregory A. Neumann,Gregory A. Neumann,Frank G. Lemoine,James B. Abshire,Oded Aharonson,C. David,Brown,Steven A. Hauck,Anton B. Ivanov,Patrick J. McGovern,H. Jay Zwally,Thomas C. Duxbury +21 more
TL;DR: Elevations measured by the Mars Orbiter Laser Altimeter have yielded a high-accuracy global map of the topography of Mars, which includes the low northern hemisphere, the Tharsis province, and the Hellas impact basin.
Journal ArticleDOI
The Crust of the Moon as Seen by GRAIL
Mark A. Wieczorek,Gregory A. Neumann,Francis Nimmo,Walter S. Kiefer,G. Jeffrey Taylor,H. Jay Melosh,Roger J. Phillips,Sean C. Solomon,Sean C. Solomon,Jeffrey C. Andrews-Hanna,Sami W. Asmar,A. Konopliv,Frank G. Lemoine,David E. Smith,Michael M. Watkins,James G. Williams,Maria T. Zuber +16 more
TL;DR: In this article, high-resolution gravity data obtained from the dual Gravity Recovery and Interior Laboratory (GRAIL) spacecraft show that the bulk density of the Moon's highlands crust is 2550 kilograms per cubic meter, substantially lower than generally assumed.
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Internal Structure and Early Thermal Evolution of Mars from Mars Global Surveyor Topography and Gravity
Maria T. Zuber,Maria T. Zuber,Sean C. Solomon,Roger J. Phillips,David E. Smith,G. Leonard Tyler,Oded Aharonson,Georges Balmino,W. Bruce Banerdt,James W. Head,Catherine L. Johnson,Frank G. Lemoine,Patrick J. McGovern,Gregory A. Neumann,Gregory A. Neumann,David D. Rowlands,Shijie Zhong +16 more
TL;DR: The strength of the lithosphere beneath the ancient southern highlands suggests that the northern hemisphere was a locus of high heat flow early in martian history and the thickness of the elastic lithosphere increases with time of loading in the northern plains and Tharsis.
Journal ArticleDOI
Ancient Geodynamics and Global-Scale Hydrology on Mars
Roger J. Phillips,Maria T. Zuber,Maria T. Zuber,Sean C. Solomon,Matthew P. Golombek,Bruce M. Jakosky,W. Bruce Banerdt,David E. Smith,Rebecca M.E. Williams,Brian M. Hynek,Oded Aharonson,Steven A. Hauck +11 more
TL;DR: The release of carbon dioxide and water accompanying the emplacement of Tharsis magmas may have sustained a warmer climate than at present, enabling the formation of ancient valley networks and fluvial landscape denudation in and adjacent to the large-scale trough.