Australian Sky & Telescope

NASA’s Insight reveals first look inside Mars

NASA’S INSIGHT MISSION has reported the first direct observations of another rocky planet’s interior structure. The results — a surprisingly thin crust, a one-layer mantle and a large core — will help scientists understand how Mars formed and evolved.

Measuring marsquakes wasn’t just a matter of sending a seismometer to!’” says Simon Stähler (ETH Zurich, Switzerland). The team waited several months after the seismometer’s deployment before a shake occurred deep enough to probe the planet’s interior, says seismometer co-investigator Brigitte Knapmeyer-Endrun (University of Cologne, Germany).

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