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Io is the most volcanically active place in the Solar System, covered by hundreds of hotspots.
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Io is the most volcanically active place in the Solar System, covered by hundreds of hotspots. This outgassing of sulfur dioxide (SO₂) is released into space and becomes a tenuous atmosphere around the moon, but escapes into orbit around Jupiter, gets ionized, and forms a plasma torus around Jupiter. According to a new paper, Io is losing about a ton a second from its atmosphere to supply this torus, and not directly from volcanic eruptions.
Mass supply from Io to Jupiter's magnetosphere
Abstract page for arXiv paper 2403.13970: Mass supply from Io to Jupiter's magnetosphere
arXiv.org (arxiv.org)
