Astronomy Picture of the Day

Fountains Discovered on Saturn's Enceladus


Bild Note: 0 (0 Votes)

⏴ previousBild Upload von 18.02.2016 21:43next ⏵
zorg.ch
#82354 by @ 06.12.2005 00:00 - nach oben -
Fountains Discovered on Saturn's Enceladus

Explanation: Fountains of ice shoot out from Saturn's moon Enceladus. Clear discovery images of the fountains were made using observations from the robot Cassini spacecraft currently orbiting Saturn. During a recent pass, Cassini was programmed to look back toward the Sun where Enceladus would appear as a thin crescent. From this vantage point, particles emitted from the surface would better show themselves by reflecting sunlight. The tactic was successful -- the above frame shows several plumes emanating from regions previously known to contain gashes in the surface dubbed tiger stripes. Cassini detected an increase in particle emissions from these regions during a July flyby. Some of these ice particles likely contribute to the make up of Saturn's mysterious E ring.

Credit & Copyright