Trapped in a gravitational push and pull between Jupiter and other Jovian moons, Io is constantly being stretched and compressed. Heat generated by these contortions has melted pockets of the moon's interior so much that Io is our solar system's most volcanically active body. New research shows how its atmosphere is shaped both by volcanoes and by Jupiter's overpowering magnetosphere.
Trapped in a gravitational push and pull between Jupiter and other Jovian moons, Io is constantly being stretched and compressed. Heat generated by these contortions has melted pockets of the moon's interior so much that Io is our solar system's most volcanically active body. New research shows how its atmosphere is shaped both by volcanoes and by Jupiter's overpowering magnetosphere.
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