Editor’s note: Is there life on Io? To be certain, Io is a radiation-drenched lava world, yes. But life on Earth manages to thrive in some rather absurdly extreme volcanic […]
Callisto
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
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
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
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
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 […]
Posted inAstrochemistry, Astrogeology, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Callisto, Icy Worlds, Imaging & Spectroscopy, Jupiter, Status Report
Revealing Callisto’s Carbon-rich Surface And CO2 Atmosphere With JWST
We analyzed spectral cubes of Callisto’s leading and trailing hemispheres, collected with the NIRSpec Integrated Field Unit (G395H) on the James Webb Space Telescope.
Posted inCallisto, Europa, Ganymede, Io, Jupiter, Status Report
Influence Of The Jovian Current Sheet Models On The Mapping Of The UV Auroral Footprints Of Io, Europa, And Ganymede
The in-situ characterization of moon-magnetosphere interactions at Jupiter and the mapping of moon auroral footpaths require accurate global models of the magnetospheric magnetic field.
Posted inCallisto, Europa, Ganymede, Gas Giants, Icy Worlds, Io, Jupiter, Press Release
Video: The Making of Juice: The Film
One giant planet. Three icy moons. An eight-year journey. One special spacecraft.
Posted inCallisto, Europa, Ganymede, Gas Giants, Icy Worlds, Io, Jupiter, Missions & Hardware, Press Release
Juice Spacecraft Makes Earth-Moon Flyby On Its Astrobiology-Themed Mission
On 17 November 2023, ESA’s Juice spacecraft carried out one of the largest and most important manoeuvres in its eight-year journey to Jupiter.
Posted inAstrogeology, Callisto, Icy Worlds, Imaging & Spectroscopy, Status Report
Thermal Properties Of The Leading Hemisphere Of Callisto Inferred From ALMA Observations
We present a thermal observation of Callisto’s leading hemisphere obtained using the Atacama Large Millimeter/submillimeter Array (ALMA) at 0.87 mm (343 GHz). The angular resolution achieved for this observation was […]