NASA’s InSight lander has picked up on some interesting rumblings on Mars, and the space agency shared them Tuesday in a blog post.
The spacecraft is equipped with an incredibly sensitive seismometer called the Seismic Experiment for Interior Structure (SEIS), which is designed to listen for marsquakes. By examining how seismic waves move through the planet’s interior, scientists hope to learn more about Mars’ deep inner structure.
InSight placed the seismometer on Mars’ surface in December, but it took until April for the instrument to detect the first likely marsquake. More than 100 events have been detected, and around 21 of them are “strongly considered to be quakes,” NASA says.
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