2/17/2014

A mysterious white object with a crimson center that was photographed by the Mars rover Opportunity in December is a rock, according to NASA officials. The object, which resembles a jelly doughnut, became the subject of intense speculation after it suddenly appeared in before-and-after photos taken by the rover. NASA scientists reject the supposition that the object is some sort of Martian fungus, saying it is a rock that Opportunity drove over.

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