Titan, the largest moon of Saturn, is a fascinating and deeply alien world. Many bodies in space are, well, dead. No weather, no climate, no geology. Not Titan! Things are Happening on Titan, but none of the elements building the complexity and weather of this planet are the same as those on Earth.

I really enjoyed this video, and here are some exciting images. What happens when a river of methane carves "rock" of water-ice and organic sand?

https://www.youtube.com/watch?v=jxPsu0zHrd8