Week in Photos: Iditarod Winner, Penguin Pebble Envy, Titan Seas, More

News photos from the week of March 9-15, 2007
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Titan, March 13, 2007—Saturn's largest moon has "seas" of liquid hydrocarbons near its north pole, the latest radar image suggests. The largest of these bodies, shown at left in this NASA image, is at least 39,000 square miles (100,000 square kilometers)—larger than Lake Superior in North America.

Images from NASA's Cassini spacecraft suggested last year that Titan has lakes of methane and ethane—evidence that the distant moon experiences a "water cycle" similar to that on Earth.

The largest of the newfound seas covers a greater percentage of Titan then the Black Sea does of Earth.

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Image courtesy NASA/JPL/GSFC
 
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