NASA has solved the mystery of the "Martian jelly doughnut." First seen by the Mars Exploration Rover Opportunity on January 8, the 1.5-in wide, white-rimmed, red-centered rock that resembles a piece of pastry seemingly appeared out of nowhere, but the space agency now says that it's actually a rock fragment dislodged by the rover's passing... Continue Reading NASA solves Martian rock mystery
Section: Space
Tags: Mars, NASA, Opportunity
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