PDA

View Full Version : Simply Astonishing: Enceladus, the Jet-Powered Moon



Fraser
2010-Oct-01, 03:20 PM
What an astonishing view of Saturn‘s moon Enceladus, as seen by Cassini! At least four different plumes of water ice are spewing out from the south polar region, highlighted because of the black space behind the Moon. On Twitter, Carolyn Porco said that we see four jets because we’re looking down the four tiger stripe [...]

More... (http://www.universetoday.com/74744/simply-astonishing-enceladus-the-jet-powered-moon/)

Spoons
2010-Oct-01, 03:24 PM
That is a stunning image!

Swift
2010-Oct-01, 04:40 PM
"That's no moon" ;)

MAPNUT
2010-Oct-01, 04:51 PM
So does that ice fall back to the surface, or is it lost to space? If the latter, how long until Enceladus is used up, or how big was it a billion years ago?

Never mind, Phil answered that in his blog. A long time.

otakenji
2010-Oct-03, 10:21 AM
The mass of the water in the "jets" (geysers) is not enough to alter the orbit of Enceladus.