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Huygens: 'ground Truth' From an Alien Moon

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Titan, Saturn moon

Images taken by Huygens were used to create this view, which shows the probe's perspective from an altitude of about 6 miles (10 kilometers).

Credit: ESA/NASA/JPL/University of Arizona

After a two-and-a-half-hour descent, the metallic, saucer-shaped spacecraft came to rest with a thud on a dark floodplain covered in cobbles of water ice, in temperatures hundreds of degrees below freezing.

From Jet Propulsion Laboratory/NASA
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