Saturn’s moon Enceladus


This is a photo of Saturn’s moon Enceladus – a dynamic ice world.  Its surface shifts on geologic timescales, with vast ice sheets spreading and crashing like tectonic plates. Cryovolcanoes (which is a real term that I did not make up) shoot geysers of water out into space.

Recent readings taken by the Cassini spacecraft suggest that Enceladus has a rocky core and liquid oceans beneath the icy surface.

This picture was taken as Cassini was speeding away from Enceladus in 2008, after skimming just 15 miles above its surface.

Happy Saturnalia!


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