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Mars Has a Warm Region Inside

Something deep inside Mars has scientists looking for clues to its internal evolution. A team at the University of Arizona led by Alexander Byrne, used a technique called "tidal tomography" to probe a heat anomaly in the southern hemisphere mantle. It turns out this subsurface region measures about 200 to 400 degrees Celsius warmer than the rest of the mantle. That warm spot may contain information about how Mars has changed over its lifetime.

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