Callisto
Posted inAnalog Studies, Arctic / Antarctic / Alpine, Astrogeology, Atmospheres, Climate, Weather, Away Teams & Field Reports, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Callisto, Cryobiology, Enceladus, Europa, Extremeophiles and Extreme Environments, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Jupiter, Mapping, Geodesy, Cartography, Bathymetry, Missions & Hardware, Nomenclature, Systematics, Natural History, Robotics/Rovers/UAVs, Water/Hycean Worlds & Oceanography

Ice Planet Exploration: A Dataset Of Antarctic Ecosystems In Ice-free Lands

by Keith Cowing

Astrobiology.com Editor’s note: Recently the Fram2 mission took four astronaut explorers on an orbital path that covered both of our planet’s polar regions. This was the fist human mission to […]

Posted inBiogeochemical Cycles & Geobiology, Callisto, Europa, Ganymede, Icy Worlds, Imaging & Spectroscopy, Io, Jupiter, Radiation, Status Report

Energy And Temperature Dependencies For Electron-induced Sputtering From H2O-ice: Implications For The Icy Galilean Moons

by Keith Cowing

To better assess the role that electrons play in exosphere production on icy-rich bodies, we measured the total and O2 sputtering yields from H2O-ice for electrons with energies between 0.75 […]

Posted inAstrogeology, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Callisto, Enceladus, Europa, Exploration Gear & Tech, Ganymede, Icy Worlds, Io, Jupiter, Mapping, Geodesy, Cartography, Bathymetry, Missions & Hardware, Press Release

Astrobiology Recon Missions: Using Ice-penetrating Radar To Find Liquid Water On Other Worlds

by Keith Cowing

The first clue for finding life on other planets is finding liquid water. The moons of Saturn and Jupiter like Enceladus, Ganymede, Europa, and Callisto are suspected of holding oceans […]

Posted inAstrogeology, Callisto, Caves, Craters, Mountains, Subsurface, Lava Tubes, Ganymede, Icy Worlds, Jupiter, Mapping, Geodesy, Cartography, Bathymetry, Status Report

Iceworld Morphology: Dome Craters on Ganymede and Callisto May Form by Topographic Relaxation of Pit Craters Aided by Remnant Impact Heat

by Keith Cowing

The icy Galilean satellites display impact crater morphologies that are rare in the Solar System. They deviate from the archetypal sequence of crater morphologies as a function of size found […]

Posted inAstrogeology, Callisto, Caves, Craters, Mountains, Subsurface, Lava Tubes, Ganymede, Icy Worlds, Imaging & Spectroscopy, Impact events, Mapping, Geodesy, Cartography, Bathymetry, Status Report

Large Impact Features on Ganymede and Callisto as Revealed by Geological Mapping and Morphometry

by Keith Cowing

We have performed topographic and geological mapping of 19 large impact features on Ganymede and Callisto in order to gather morphometric and crater age data that allow us to quantify […]

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