Five places we might find life in our own solar system

Life on Earth occupies some bizarre places – pools of pitch, deep-sea hydrothermal vents, and lightless lakes buried under glaciers. While scientists hunt for hospitable planets circling other stars, the solar system has a few candidates. Here are five.

4. Titan

NASA/AP/File
This May 2006 photo shows a flattened projection of the Huygens probe's view 6 miles over Saturn's moon Titan.

Saturn's largest moon has lots of hydro-­carbons as raw material for biologically important molecules. It's extremely cold. Could life exist underground?

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