The 'Death Star' moon hides a secret liquid ocean
In short: Mimas is famous for its cinematic resemblance to a fictional space station, but it holds a much more significant secret. New research reveals that this seemingly dead world likely harbors a vast underground sea.
While Mimas was long considered a solid, battered shell, a 2024 analysis of Cassini spacecraft data suggests otherwise. Scientists identified a rocking motion known as libration caused by the moon's orbit. This movement indicates that instead of a solid core, there is a deep global liquid ocean beneath its crust.
This discovery is significant because Mimas was considered an unlikely candidate for such a feature. Understanding these buried oceans helps researchers identify potential habitats for life beyond Earth and provides new insights into the dynamics of frozen moons in our solar system.
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Sources
- Summary by Intellect · source: Saturn's Death Star Moon Has a Surprising Secret
- Also: Saturn’s ‘Death Star’ moon was hiding a secret: an underground ocean
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