This moon is the most volcanically active.

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Io's intense volcanism is powered largely by tidal heating. Source: Io (moon) ↗

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10This icy Saturnian moon shoots plumes from its south polar region, fed by a subsurface ocean.RECALL
Enceladus
It orbits Saturn
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11NASA's Clipper mission, launched in 2024, is bound for this icy moon of Jupiter.RECALL
Europa
Europa Clipper will investigate whether conditions beneath Europa's icy surface could support life; it is not a direct life-detection…
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12Dwarf planet in the asteroid beltRECALL
Ceres
The largest object between Mars and Jupiter
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