Huge Volcanic Event on Jupiter’s Moon Io

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Jupiter’s moon Io is the most volcanically active body in our solar system, and NASA’s Juno spacecraft recently detected the largest volcanic event ever observed on that body.1 During a flyby on December 27, 2024, Juno detected the infrared radiation from a gargantuan volcanic hot spot larger than Lake Superior near Io’s south pole (see figure). The volcanism caused a subtle but noticeable change in the appearan… More…

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