Mysterious rumblings from inside of Mars detected by NASA lander

The space agency's scientists believe the seismic events are caused by a sudden release of energy from the planet's interior.

Intriguingly, the new rumblings are believed to have originated in a location on Mars called Cerberus Fossae, where two other previous candidate events are believed to have originated. Although these rumblings have sometimes been called "Marsquakes" the planet is not believed to have a similarly active tectonic system like Earth's that causes earthquakes. And curiously, the previous seismic events detected by the space agency's InSight lander - which arrived on the planet's surface in 2018 - occurred almost a full Martian year ago, or two Earth years, during the Martian northern summer.