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 […]
Ganymede
Posted inGanymede, Jupiter, Magnetic Fields, Electromagnetism, bioelectricity,, Missions & Hardware, Space Weather & Heliophysics, Status Report
Properties of Electrons Accelerated by the Ganymede-magnetosphere Interaction: Survey of Juno High-latitude Observations
The encounter between the Jovian co-rotating plasma and Ganymede gives rise to electromagnetic waves that propagate along the magnetic field lines and accelerate particles by resonant or non-resonant wave-particle interaction. […]
Posted inCallisto, Europa, Exploration Gear & Tech, Ganymede, Icy Worlds, Imaging & Spectroscopy, Io, Jupiter, Mapping, Geodesy, Cartography, Bathymetry, Missions & Hardware, Robotics/Rovers/UAVs, Status Report
Contribution Of PRIDE VLBI Products To The Joint JUICE-Europa Clipper Moons’ Ephemerides Solution
In the coming decade, JUICE and Europa Clipper radio-science will yield the most accurate estimation to date of the Galilean moons’ physical parameters and ephemerides. JUICE’s PRIDE (Planetary Radio Interferometry […]
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 inEnceladus, Europa, Ganymede, Icy Worlds, Press Release, Titan, Water/Hycean Worlds & Oceanography
Ice Shell Thickness Reveals Water Temperature On Ocean Worlds
Cornell University astrobiologists have devised a novel way to determine ocean temperatures of distant worlds based on the thickness of their ice shells, effectively conducting oceanography from space.
Posted inAstrochemistry, Astrogeology, Callisto, Comets and Asteroids, Enceladus, Europa, Ganymede, Habitable Zones, Icy Worlds, Press Release, Water/Hycean Worlds & Oceanography
SwRI Scientists Find Evidence Of Geothermal Activity Within Icy Dwarf Planets
A team co-led by Southwest Research Institute found evidence for hydrothermal or metamorphic activity within the icy dwarf planets Eris and Makemake, located in the Kuiper Belt. Methane detected on […]
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.