M
Mark R. Showalter
Researcher at Search for extraterrestrial intelligence
Publications - 153
Citations - 4420
Mark R. Showalter is an academic researcher from Search for extraterrestrial intelligence. The author has contributed to research in topics: Rings of Saturn & Ring (chemistry). The author has an hindex of 33, co-authored 146 publications receiving 3901 citations. Previous affiliations of Mark R. Showalter include Cornell University & Ames Research Center.
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Journal ArticleDOI
The Pluto system: Initial results from its exploration by New Horizons.
S. A. Stern,Fran Bagenal,Kimberly Ennico,G. R. Gladstone,William M. Grundy,William B. McKinnon,J. M. Moore,Catherine B. Olkin,John R. Spencer,Harold A. Weaver,Leslie A. Young,Tom Andert,Jane M. Andrews,M. E. Banks,B. Bauer,Jeremy Bauman,Olivier S. Barnouin,Peter D. Bedini,K. B. Beisser,Ross A. Beyer,S. Bhaskaran,Richard P. Binzel,Emma Birath,Mike Bird,D. J. Bogan,Alice Bowman,Veronica J. Bray,M. Brozovic,C. Bryan,Matthew R. Buckley,Marc W. Buie,Bonnie J. Buratti,Stewart Bushman,Andrew B. Calloway,Brian Carcich,Andrew F. Cheng,Steven J. Conard,C. A. Conrad,Jason C. Cook,Dale P. Cruikshank,O. S. Custodio,C. M. Dalle Ore,C. C. Deboy,Zach Dischner,Philip J. Dumont,Alissa M. Earle,H. A. Elliott,J. Ercol,Carolyn M. Ernst,Tiffany J. Finley,Sarah H. Flanigan,Glen H. Fountain,M. J. Freeze,Thomas K. Greathouse,James L. Green,Yanping Guo,Matthias Hahn,Douglas P. Hamilton,Sarah A. Hamilton,Jennifer Hanley,A. Harch,H. M. Hart,Chris B. Hersman,A. Hill,Matthew E. Hill,David P. Hinson,Mark E. Holdridge,Mihaly Horanyi,Alan D. Howard,Carly Howett,Coralie D. Jackman,Robert A. Jacobson,D. E. Jennings,Joshua A. Kammer,H. K. Kang,David E. Kaufmann,Peter Kollmann,Stamatios M. Krimigis,David Y. Kusnierkiewicz,Tod R. Lauer,J. E. Lee,K. L. Lindstrom,Ivan Linscott,Carey M. Lisse,Allen W. Lunsford,V. A. Mallder,Nicole Martin,David J. McComas,Ralph L. McNutt,Douglas S. Mehoke,Thomas Mehoke,E. D. Melin,Max Mutchler,Derek S. Nelson,Francis Nimmo,Jorge I. Nunez,A. C. Ocampo,William M. Owen,Martin Paetzold,B. Page,Alex Parker,Joel Wm. Parker,Frederic Pelletier,J. Peterson,Nickalaus Pinkine,M. Piquette,Simon B. Porter,Silvia Protopapa,Jillian Redfern,Harold J. Reitsema,D. C. Reuter,James H. Roberts,Stuart J. Robbins,Gabe Rogers,Debi Rose,Kirby Runyon,Kurt D. Retherford,M. G. Ryschkewitsch,Paul M. Schenk,Eric Schindhelm,B. Sepan,Mark R. Showalter,Kelsi N. Singer,M. Soluri,Dale Stanbridge,Andrew J. Steffl,Darrell F. Strobel,T. Stryk,Michael E. Summers,Jamey Szalay,M. B. Tapley,A. Taylor,H. W. Taylor,Henry B. Throop,Constantine Tsang,G. L. Tyler,Orkan M. Umurhan,A. J. Verbiscer,M. H. Versteeg,Michael Vincent,R. W. Webbert,S. Weidner,G. Weigle,Oliver L. White,Karl Whittenburg,B. G. Williams,Kaj E. Williams,S. P. Williams,W. W. Woods,Amanda M. Zangari,Eric J. Zirnstein +150 more
TL;DR: The New Horizons encounter revealed that Pluto displays a surprisingly wide variety of geological landforms, including those resulting from glaciological and surface-atmosphere interactions as well as impact, tectonic, possible cryovolcanic, and mass-wasting processes.
Journal ArticleDOI
Titan's atmospheric temperatures, winds, and composition
F. M. Flasar,R. K. Achterberg,Barney J. Conrath,Peter J. Gierasch,V. G. Kunde,Conor A. Nixon,Gordon L. Bjoraker,D. E. Jennings,Paul N. Romani,Amy A. Simon-Miller,Bruno Bézard,Athena Coustenis,Pgj Irwin,Nicholas A Teanby,John C. Brasunas,John C. Pearl,M. E. Segura,Ronald Carlson,A. A. Mamoutkine,Paul J. Schinder,Antonella Barucci,Regis Courtin,Thierry Fouchet,Daniel Gautier,Emmanuel Lellouch,A. Marten,R. Prangé,Sandrine Vinatier,Darrell F. Strobel,S. B. Calcutt,Peter L. Read,Fredric W. Taylor,Neil Bowles,Robert E. Samuelson,Glenn S. Orton,Linda Spilker,Tobias Owen,John R. Spencer,Mark R. Showalter,C. Ferrari,Mian M. Abbas,François Raulin,Scott G. Edgington,Peter A. R. Ade,E. H. Wishnow +44 more
TL;DR: Early Cassini infrared observations of Titan show a stratopause at an altitude of 310 kilometers (and 186 kelvin at 15°S), and the concentrations of several stratospheric organic compounds are enhanced at mid- and high northern latitudes, and the strong zonal winds may inhibit mixing between these latitudes and the rest of Titan.
Journal ArticleDOI
The geology of Pluto and Charon through the eyes of New Horizons.
Jeffrey M. Moore,William B. McKinnon,John R. Spencer,Alan D. Howard,Paul M. Schenk,Ross A. Beyer,Ross A. Beyer,Francis Nimmo,Kelsi N. Singer,Orkan M. Umurhan,Oliver L. White,S. Alan Stern,Kimberly Ennico,Catherine B. Olkin,Harold A. Weaver,Leslie A. Young,Richard P. Binzel,Marc W. Buie,Bonnie J. Buratti,Andrew F. Cheng,Dale P. Cruikshank,William M. Grundy,Ivan Linscott,Harold J. Reitsema,Dennis C. Reuter,Mark R. Showalter,Veronica J. Bray,C. L. Chavez,C. L. Chavez,Carly Howett,Tod R. Lauer,Carey M. Lisse,Alex Parker,Simon B. Porter,Stuart J. Robbins,Kirby Runyon,T. Stryk,Henry B. Throop,Constantine Tsang,Anne J. Verbiscer,Amanda M. Zangari,Andrew L. Chaikin,Don E. Wilhelms +42 more
TL;DR: Nasa’s New Horizons spacecraft has revealed a complex geology of Pluto and Charon, including evidence of tectonics, glacial flow, and possible cryovolcanoes, and these findings massively increase the understanding of the bodies in the outer solar system.
Journal ArticleDOI
An observed correlation between plume activity and tidal stresses on Enceladus
Matthew M. Hedman,Catherine Gosmeyer,Philip D. Nicholson,Christophe Sotin,Robert H. Brown,Roger N. Clark,Kevin H. Baines,B. J. Buratti,Mark R. Showalter +8 more
TL;DR: It is reported that the plume’s horizontally integrated brightness is several times greater when Enceladus is near the point in its eccentric orbit where it is furthest from Saturn than it is when close to the point of closest approach to the planet.
Journal ArticleDOI
Plasma, plumes and rings: Saturn system dynamics as recorded in global color patterns on its midsize icy satellites
Paul M. Schenk,Douglas P. Hamilton,Robert E. Johnson,William B. McKinnon,Chris Paranicas,Jürgen Schmidt,Mark R. Showalter +6 more
TL;DR: In this paper, a global map of the five inner midsize icy saturnian satellites, Mimas, Enceladus, Tethys, Dione, and Rhea, was constructed in three colors (UV, Green and near-IR) at resolutions of 1 km/pixel.