Freezing, wet and miserable - Titan is one long winter

The European probe that landed Saturn’s largest moon found a freezing, primitive but active world that, like Earth, seems to be doused with rains that gouge out rivers, erode rocks and form pools, scientists revealed today.

But Titan’s rains appear to be liquid methane, not water. Black-and-white photos from the Huygens probe showed a rugged terrain of ridges, peaks and dark vein-like channels, suggesting that the moon, 744 million miles, away is scoured by the same forces of erosion that shape Earth.