A 10,000-kilogram boulder moving around and gullies that look suspiciously like rivers, not on Earth, but on Mars. Expertise Network postdoc Lonneke Roelofs explains it in a new video from the ‘Universiteit van Nederland’.
For years, scientists have puzzled over this: is this evidence of water on Mars and does it mean that alien life is possible? Probably not, because water on Mars doesn’t work the same way as it does on Earth. But how did these river-like gullies form? Earth scientist Lonneke Roelofs (Utrecht University) investigated this by simulating mudflows. She discovered that it wasn’t water that moved the blocks, but CO2. But how?
Check out the new video of the ‘Universiteit van Nederland, where postdoc Dr. Lonneke Roelofs of the Expertise Network explains her research using experiments, pressure chambers and parabolic flights.

