The interior of ‘Mars’ is not behaving’, reveals an active mantle plume

For decades, astronomers assumed that Mars was geodynamically dead, a planet without thunderous earthquakes or erupting volcanoes. Although remnants of mighty volcanoes exist on the surface of the Red Planet today, these colossal structures have been dormant for millions of years. With little to no heat turning on the planet’s engine, the scientists reasoned, Mars it was inactive a long time ago.

However, in the last five years, this assumption has been shown to be incorrect. NASA’s InSight mission has detected earthquakes and even evidence of recent volcanism around a region of Mars, known as Elysium Planitia. And now, they think they know why this activity occurs.

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