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Huge craters missing

In an intriguing find, scientists associated with NASA’s Dawn spacecraft have discovered a mysterious disappearance of a significant number of large craters on dwarf planet Ceres, indicating something has happened to it. NASA’s Dawn spacecraft arrived to orbit Ceres in March 2015 and mission scientists expected to find a heavily-cratered body generally resembling the protoplanet Vesta – Dawn’s previous port of call. Instead, as the spacecraft drew near to Ceres, a somewhat different picture began to emerge: Something has happened to Ceres to remove its biggest impact basins, said a report from NASA.

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