Sunday, February 11, 2007
Io: The Prometheus Plume
Credit: Galileo Project, JPL, NASA
Explanation: What's happening on Jupiter's moon Io? Two sulfurous eruptions are visible on Jupiter's volcanic moon Io in this color composite image from the robotic Galileo spacecraft that orbited Jupiter from 1995 to 2003. At the image top, over Io's limb, a bluish plume rises about 140 kilometers above the surface of a volcanic caldera known as Pillan Patera. In the image middle, near the night/day shadow line, the ring shaped Prometheus plume is seen rising about 75 kilometers above Io while casting a shadow below the volcanic vent. Named for the Greek god who gave mortals fire, the Prometheus plume is visible in every image ever made of the region dating back to the Voyager flybys of 1979 - presenting the possibility that this plume has been continuously active for at least 18 years. The above digitally sharpened image was originally recorded in 1997 on June 28 from a distance of about 600,000 kilometers.
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10 comments:
...it almost looks like a frozen "Earth". What a great pic!
It is awesome. It's so clear!
it looks nearly inhabitable!
Only if you are into mukluks and spacesuits!!!!!!!!!!!!
tmw
Neat view though! I remember the Saturn fly-by, through the rings, it was awesome!
Another great Eyes pic snagged! Thanks. :)
:>)
Hope those aren't greenhouse gases, heh.
LOL!
Hang on, I know what that is!!
It's an eruption of blue string soup from a vast underground reserve.
And where there is blue string soup, there must be Clangers. Everybody knows that.
Fancy that, life on IO, and it's all hand knitted.....
Monty
:>)
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