Who say nothing much happens on Mars? First image is of a large, elongated boulder (6 metres x 3.5) that rolled down a slope leaving an odd repeating pattern in its trail due to its shape.
Second image shows two shots a year apart, revealing a large chunk of dusty ice tumbling down a slope and breaking apart, at the planet’s North Pole.
All images from Mars Reconnaissance Orbiter, NASA/JPL/University of Arizona

Interesting, we’ve seen evidence of changes in satellite images due to recent events before, but these are the best quality that I’ve seen.

It’s not surprising that freeze-thaw cycles at the poles create recent erosion events.

The images are from this lot of captioned HiRISE (High Resolution Imaging Science Experiment) views. Giant versions available (as well as the large context views from which close-ups are taken) on each image’s page.

http://www.uahirise.org/releases/all_captions.php