= Mercury beating heart
{wiki=Mercury_beating_heart}
The term "Mercury's beating heart" refers to the planet's unique and active geological processes found at its core. Recent studies, especially from data obtained by NASA's MESSENGER spacecraft, suggest that Mercury has a partially molten outer core, which contributes to its magnetic field. This dynamic activity creates a phenomenon that can be likened to a "beating heart" due to the constant motion and interaction within the planet's core.
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