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Accidentally exposed yellowish-green crystals reveal ‘mind-blowing’ finding on Mars, scientists say
While surveying the site of an ancient channel on Mars, the Curiosity rover ran over a rock and discovered pure sulfur on the red planet for the first time.
The Curiosity team was eager for the rover to investigate the Gediz Vallis channel, a winding groove that appears to have been created 3 billion years ago by a mix of flowing water and debris. While approaching Gediz Vallis channel, Curiosity sent back pictures of an unusual sight: a flat area, about half the size of a football field, scattered with bright white hand-size rocks. Since landing on Mars on August 5, 2012, the Curiosity rover has ascended 2,600 feet (800 meters) up the base of Mount Sharp from the floor of Gale Crater.The mountain is a central peak of the crater, which is a vast, dry ancient lake bed.
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