It looks like a filmmaker's apocalyptic vision of Earth following a devastating natural disaster. But this colossal ice formation is actually a portion of the wall terraces of a huge crater on Mars.
Approximately 37 miles in diameter, a section of the Mojave Crater in the planet's Xanthe Terra region has been digitally mapped by Nasa scientists.
The result is this digital terrain model that was generated from a stereo pair of images and offers a synthesized, oblique view of a 2.5-mile portion of the crater's wall terraces. More here...
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