Juno Reveals Io's Hidden Heat: Subsurface Clues to a Volcanic Powerhouse
TL;DR Summary
NASA's Juno spacecraft used its Microwave Radiometer to peer beneath Io's surface during late-2023 and early-2024 flybys, uncovering a buried heat signature with temperatures rising several feet below the crust and localized warm pockets. The findings, published in the Journal of Geophysical Research: Planets, show heat moving through Io's crust by conduction or from cooling lava, driven by Jupiter's tidal forces, and offer insights for understanding volcanism on Earth and subsurface oceans on other icy moons such as Europa and Ganymede.
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- NASA’s Juno Probe Has Seen Inside The Solar System’s Most Volcanic World, And It's Pretty Hellish In There IFLScience
- Gravitational Tug-of-War Turns up the Heat on Jupiter's Moon Io, Causing Underground Temperatures to Soar Discover Magazine
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