Callisto – Page 2 – My WordPress Site

Astrogeology, Biogeochemical Cycles & Geobiology, Callisto, Ganymede, Icy Worlds, Mapping, Geodesy, Cartography

Conditions For Accretion Favoring An Unmelted Callisto And A Differentiated Ganymede

by Keith CowingMay 13, 2025May 13, 2025

Image of Antarctica as seen by human eyes from orbit - Fram2/SpaceX

Analog 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, 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 CowingMay 8, 2025May 8, 2025

Callisto’s crater-covered surface may be hiding a liquid water ocean. Credit: NASA/JPL-Caltech/Kevin M. Gill, CC BY 2.0 Source: AGU Advances

Astrogeology, Biosignatures & Paleobiology, Callisto, Icy Worlds, Jupiter, Water/Hycean Worlds & Oceanography

Callisto Is Very Likely an Ocean World

by Keith CowingFebruary 21, 2025February 21, 2025

Block diagram of the proposed multi-physics simulation model LunaIcy. -- astro-ph.EP

Astrogeology, Biogeochemical Cycles & Geobiology, Callisto, Cryobiology, Europa, Ganymede, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Water/Hycean Worlds & Oceanography

LunaIcy: Exploring Europa’s Icy Surface Microstructure through Multiphysics Simulations

by Keith CowingOctober 22, 2024October 22, 2024

Terrestrial planet with thin atmosphere -- NASA

Callisto, Europa, Ganymede, Habitable Zones, Icy Worlds, Jupiter, Water/Hycean Worlds & Oceanography

Astrobiology.com on Deutsche Welle: Europa Clipper and ESA Juice

by Keith CowingOctober 14, 2024October 15, 2024

The UVS instrument recorded spatial information produced by hydrogen atoms radiating from the Earth. In the background a number of individual stars are identified along with the Pleiades star cluster. Juice-UVS plans to similarly observe hydrogen atoms radiating from Ganymede and Jupiter’s other icy moons. Credit Southwest Research Institute

Callisto, Europa, Ganymede, Icy Worlds, Jupiter, Missions & Hardware

Astrobiology Fleet Update: ESA Juice Tests SwRI Ultraviolet Spectrograph

by Keith CowingOctober 9, 2024October 9, 2024

Above: Examples of typical surfaces of the icy Galilean satellites (panel a: Europa, near Conamara Chaos region at 8.1°N/90.9°E; panel b: Ganymede, Nicholson Regio at ∼14°S/12.7°E; panel c: Callisto, detail of Asgard impact basin at 14.7°N/218°E). All images are scaled to 150 m px−1. The crater density (a proxy of surface age) increases from Europa to Callisto, reflecting the geological history of surface processes. The surface of Europa displays the most complex inventory of landforms that were formed by endogenic processes, whereas Callisto’s surface is almost devoid of any evidence for tectonic and cryovolcanic activity (Image: NASA/DLR). Below: Models of the interiors of the icy Galilean satellites (Images: ESA/ATG Medialab). Details on their examination by JUICE are provided by Van Hoolst et al. (2024, this collection) -- pace Sci Rev via PubMed

Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Callisto, Europa, Ganymede, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Jupiter, Mapping, Geodesy, Cartography, Missions & Hardware

Characterization of the Surfaces and Near-Surface Atmospheres of Ganymede, Europa and Callisto by JUICE

by Keith CowingSeptember 17, 2024September 17, 2024

Biogeochemical Cycles & Geobiology, Callisto, Europa, Ganymede, Icy Worlds, Imaging & Spectroscopy, Io, Jupiter, Radiation

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

by Keith CowingMay 9, 2024May 9, 2024

Terrestrial planet with thin atmosphere -- NASA

Callisto, Europa, Exploration Gear & Tech, Ganymede, Icy Worlds, Imaging & Spectroscopy, Io, Jupiter, Mapping, Geodesy, Cartography, Missions & Hardware, Robotics/Rovers/UAVs

Contribution Of PRIDE VLBI Products To The Joint JUICE-Europa Clipper Moons’ Ephemerides Solution

by Keith CowingMay 2, 2024May 27, 2024

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

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

by Keith CowingApril 19, 2024April 19, 2024