
Member Since 1983
Alfred S. McEwen
Professor, University of Arizona
AGU Research
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Planned Geological Investigations of the Europa Clipper Mission
OCEAN WORLDS AND SEARCH FOR LIFE: HORIZONS IN ICY SATELLITE SCIENCE AT THE LAUNCH OF THE HISTORIC EUROPA CLIPPER MISSION III ORAL
planetary sciences | 14 december 2023
Ingrid Daubar, Alexander G. Hayes, Geoffrey Collin...
Geological investigations planned for the NASA Europa Clipper mission will examine the formation, evolution, and expression of geomorphic structures f...
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Investigating Jovian Radiation Environment by the Europa Clipper Mission
OCEAN WORLDS AND SEARCH FOR LIFE: HORIZONS IN ICY SATELLITE SCIENCE AT THE LAUNCH OF THE HISTORIC EUROPA CLIPPER MISSION I POSTER
planetary sciences | 14 december 2023
Insoo Jun, Richard Meitzler, Ryan Blase, TIMOTHY C...
We present an overview of the radiation environment monitoring program planned for the Europa Clipper mission. The harsh radiation environment of Jupi...
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A Large New Crater Exposes the Limits of Water Ice on Mars
GEOPHYSICAL RESEARCH LETTERS
23 january 2023
Colin M. Dundas, Michael T. Mellon, Liliya V. Posi...
Water ice in the Martian mid‐latitudes has advanced and retreated in response to variations in the planet's orbit, obliquity, and climate. A ...
New Craters on Mars: An Updated Catalog
JOURNAL OF GEOPHYSICAL RESEARCH: PLANETS
20 july 2022
Ingrid Daubar, Colin M. Dundas, Alfred S. McEwen, ...
We present a catalog of new impacts on Mars. These craters formed in the last few decades, constrained with repeat orbital imaging. Crater diameter...
Enceladus Orbilander: Searching for signs of life in orbit and on the surface
CROSSING THE THRESHOLD: IN-SITU INSTRUMENTATION TO SEEK LIFE, ITS PRECURSORS AND GEOPHYSICAL CONTEXT ON EUROPA AND OTHER OCEAN WORLDS III ORAL
ocean worlds near and far | 19 may 2022
Shannon MacKenzie, Marc Neveu, Alfonso F. Davila, ...
The Cassini mission provided enough data to motivate a return to Saturn's moon Enceladus with the explicit goal to search for signs of life: Enceladus...
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The Science Case for a Return to Enceladus
ENCELADUS: BEACON OF OCEAN WORLDS I ORAL
planetary sciences | 15 december 2021
Linda J. Spilker, Morgan L. Cable, Carolyn Porco, ...
The plume of Enceladus is unique in the solar system, in that it provides direct access to fresh material from an extraterrestrial subsurface ocean. T...
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A Preliminary Regional Geomorphologic Map in Utopia Planitia of the Tianwen-1 Zhurong Landing Region
SURFACE PROCESSES ON EXTRATERRESTRIAL ROCKY AND ICY BODIES IV POSTER
earth and planetary surface processes | 14 december 2021
Mackenzie M Mills, Alfred S. McEwen, Chris H. Okub...
A geomorphologic map is an important step to understanding the geologic context and history of a site; here, we present an initial geomorphologic map ...
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Underground Ice on Mars: Characterization Activities, Potential as an In Situ Resource, and Possible Destination for Human Explorers
THE NEW MARS UNDERGROUND: ASTROBIOLOGY AND SPACE RESOURCES AT THE DAWN OF MARS SAMPLE RETURN I ORAL
planetary sciences | 14 december 2021
Ali M. Bramson, Jennifer L. Heldmann, Nathaniel E....
One of the next giant leaps for humanityinhabiting our neighbor planet Marsrequires enough water to support multi-year human survival and to create ro...
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