An epic crater called Odysseus
Wednesday, July 4, 2012 - 10:30
in Astronomy & Space
On June 28 NASAs Cassini spacecraft passed by Tethys, a 1,062-kilometer (662-mile) -wide moon of Saturn thats made almost entirely of ice. Tethys is covered in craters of all sizes but by far the most dramatic of all is the enormous Odysseus crater, which spans an impressive 450 kilometers (280 miles) of the moons northern hemisphere nearly two-fifths of its entire diameter!