<ul><li>Jupiter's moon Io is known for its volcanic activity, with about 400 active volcanoes.</li><li>However, new research suggests that Io does not have a global subsurface magma ocean, indicating a mostly solid mantle.</li><li>The findings from a NASA-supported study also indicate that tidal forces may not always lead to global magma oceans on moons or planetary bodies.</li><li>This study has implications for the understanding of exoplanets that experience tidal heating.</li></ul>

New Research Suggests Io Doesn’t Have a Shallow Ocean of Magma

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