SPACE PHOTOS THIS WEEK: Ares Dent, Moon Geyser, More

SPACE PHOTOS THIS WEEK: Ares Dent, Moon Geyser, More
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November 2, 2009--Sunlight causes misty plumes to shine as they spew from the south pole of Saturn's icy moon Enceladus in a new, raw image from NASA's Cassini orbiter. The picture has not yet been processed or calibrated, which is why the south pole appears "on top."

On Monday Cassini made its deepest dip yet into Enceladus's plumes, flying just 63.8 miles (102.7 kilometers) from the moon's surface to sample the plumes' composition. Previous Cassini flybys of Enceladus have revealed water and organic compounds in the plumes, along with heat emanating from ridges along the moon's south pole.
—Image courtesy NASA/JPL/Space Science Institute
 
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