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Joined: 11 May 2006
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 Posted: Mon Feb 17, 2014 9:00 am Post subject: WIRED Space Photo of the Day: Ancient Impact and Flood |
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Large and small, hundreds of thousands of craters scar the surface of Mars, hollowed out by a multitude of asteroids and comets that impacted the Red Planet throughout its history. This image shows a region of the planet's northern hemisphere known as Hephaestus Fossae - after the Greek god of fire - that was imaged by the high-resolution stereo camera on ESA's Mars Express orbiter on 28 December 2007. The image has been coloured to indicate the elevation of the terrain: green and yellow shades represent shallow ground, while blue and purple stand for deep depressions, down to about 4 km.
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Source: Wired Top Stories
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