Ceres should be riddled with craters, but it is relatively smooth. Now researchers think that the "peculiar composition and internal evolution" of Ceres must have erased larger impact basins somehow. They found signs of multiple large craters hiding below a surface smoothed with smaller impacts.

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Ceres should be riddled with craters, but it is relatively smooth. Now researchers think that the "peculiar composition and internal evolution" of Ceres must have erased larger impact basins somehow. They found signs of multiple large craters hiding below a surface smoothed with smaller impacts.