Wouter Marra: Wild water from the ground

Wouter Marra: Wild water from the ground

The Canyons on Mars

This video is available in Dutch only.

Since the first telescopes we earthlings have been fascinated by our neighbouring red planet. Deep river valleys, vast deltas and traces of debris flows, suggest a wet past on Mars. After many wild theories of mainly astronomers on the occurrence of water and life on Mars, geoscientists decided to get involved. And they came to very different conclusions.

Wouter Marra focused on the huge canyons that are so typical for the Martian landscape. How did they evolve? Where did the water come from?