Maarten Kleinhans: The many deltas on Mars

Maarten Kleinhans: The many deltas on Mars

How long did those rivers flow?

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.