First time accepted submitter GPS Pilot writes "Previous reports said the rock that suddenly appeared out of nowhere was merely 'the size of a jelly doughnut.' Now, a color image shows additional reasons for this metaphor: 'It's white around the outside, in the middle there's kind of a low spot that's dark red,' said lead scientist Steve Squyres. In the image, the object does stick out like a sore thumb amidst the surrounding orange rocks and soil. Its composition is 'like nothing we've ever seen before. It's very high in sulfur, it's very high in magnesium, it's got twice as much manganese as we've ever seen in anything on Mars.'"
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