Scientists using NASA's Mars Reconnaissance Orbiter found a fresh meteor-impact crater, and by golly it's big. It's the largest ever located anywhere by using before-and-after pictures. Using the initial pictures, scientists could nail down the time of impact to just 24 hours between March 27-28, 2012. Using the higher resolution cameras on MRO, scientists spotted not only the crater but possible landslides that occurred as a result of the impact
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