Marsquakes reveal Red Planet has surprisingly large core, thin crust

Quakes on Mars have unveiled its interior to an unprecedented degree, revealing surprising details about the Red Planet’s crust, mantle and core. 

Measurements taken by NASA’s InSight (Interior Exploration using Seismic Investigations, Geodesy and Heat Transport) lander have uncovered details, including a crustal layer that varies dramatically from previous understanding, a mantle less dense than the surface and a core that is larger and less dense than previously estimated, new results reveal. These findings will impact our understanding not only of the Red Planet today, but also how it and other rocky worlds formed and evolved in our solar system, scientists said.

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