Most quakes on Mars happen during the summer – and we don’t know why

Thousands of mysterious quakes on Mars that only happen during summer are unlike any known earthquakes, puzzling scientists.

Since NASA’s InSight lander reached Mars in 2018, it has recorded thousands of marsquakes, including some surprisingly large quakes that indicate the planet is more seismically active than we first thought.

Now, Simon Stähler at the Swiss Federal Institute of Technology in Zurich and…