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What happens when you mix freezing temperatures, methane, and radiation?…

50 Years of Space Exploration by Adam Crowe, via Flickr

à partir de WIRED

Space Photo of the Day 2013

This is Hebes Chasm on Mars. It forms a giant trough nearly 4.97 miles (8 km) deep, of Valles Marinera, the largest canyon system in the solar system. Taken with the High Resolution Stereo Camera on Mars Express.

à partir de

All the planets in one picture…

Toutes les planètes en une

astronomy, outer space, space, universe, stars, nebulas

This is the first-ever photo of liquid outside of earth (on Saturn's moon, Titan).

NASA’s Cassini spacecraft has spotted a river system stretching more than 200 miles on Saturn’s moon Titan. Though it isn’t the Nile — which is more than 20 times as long — the mighty river provides further evidence that this odd little moon is a wet world not unlike our own. Many lakes and small rivers have been found already on Titan but the newly discovered stream is the largest yet and represents the first time scientists have seen such a vast liquid system on any world other than Earth.