It's aliiiive!

Look: This landform on the Martian surface is actually moving

Frosty NASA dunes
NASA/JPL-Caltech/University of Arizona

NASA via Giphy

Mars is not known for being a quiet, still place.

Dust storms, violent weather, and changing seasons mean it’s constantly in motion; in some ways, quite similarly to Earth.

NASA/JPL-Caltech/University of Arizona

For a while, scientists thought that ripples on the Martian surface were simply a landform frozen in time, leftover by a past climate.