Marsquakes and some smart instruments help scientists confirm the size of the Red Planet’s core

Marsquakes, magma and magnetic fields – oh my!

Mars with coloured bands travelling around it representing marsquakes, with asteroid hitting planet one side and InSight landing site highlighted on the other
A wavefield simulation of Mars: the asteroid's impact allowed InSight to measure seismic waves. Credit: Credit: ETH Zurich / Doyeon Kim, Martin van Driel, and Christian Boehm