In 2021, a pair of quakes sent seismic waves deep into the Red Planet’s core, giving scientists the best data yet on its size and composition. Using seismic data from NASA's InSight Mars lander, scientists have made the first direct observations of another planet's core, determining that Mars' li
and more accurate data for a seismologist to work with. The quakes’ size was also a factor in the detections.
This is one of the last images ever taken by NASA’s InSight Mars lander. Captured on December 11, 2022, the 1,436th Martian day, or sol, of the mission, it shows InSight’s seismometer on the Red Planet’s surface. Credit: NASA/JPL-Caltech “It took a lot of seismological expertise from across the InSight team to tease the signals out from the complex seismograms recorded by the lander,” Irving said.of the planet’s core relied on seismic waves that reflected off its outer boundary, providing less precise data. Detecting seismic waves that actually traveled through the core allows scientists to refine their models of what the core looks like.
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