universetoday.com
Cracked Features on Enceladus Are Very Young
NASA's Cassini spacecraft has discovered that the long cracks discovered on the surface of Saturn's moon Enceladus are actually quite young, between 10 and 1,000 years old. These findings support a previous discovery that Enceladus has a very active geology, and its surface features have been changing quite recently. These cracks act like vents, allowing ice and vapour to spew out. The fact that Enceladus is so active came as a surprise to scientists, as it's hard for an object this small to hold onto its heat.
Fraser Cain