Roughly 40 years ago, the Voyager 1 spacecraft sailed past one of Jupiter’s large moons, and it revealed something amazing: The rocky moon, called Io, is a volcanic champion, featuring the first erupting volcanoes seen anywhere other than Earth.

Continue Reading . . . https://www.nationalgeographic.com/science/2019/07/most-volcanic-world-in-solar-system-io-moon-still-mysterious-new-atlas-shows/

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