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Europa

This image of the Cornelia Crater on Vesta shows lobate deposits (right) and curvilinear gullies (highlighted by the short white arrows, left). According to a newly published paper in The Planetary Science Journal, ice underneath the surface of an airless world could be excavated and melted by an impact, such as from a meteoroid impact, and then flow along the walls of the impact crater as liquid brines to form these distinct surface features.

New Study Sheds Light on Mysterious Surface Features of Airless Worlds

This view of Jupiter’s icy moon Europa was captured by the JunoCam imager aboard NASA’s Juno spacecraft during the mission’s close flyby on Sept. 29, 2022. Credit: Image data: NASA/JPL-Caltech/SwRI/MSSS Image processing: Kevin M. Gill CC BY 3.0 Full Image Details

NASA’s Juno Mission Measures Oxygen Production at Europa

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