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The tiniest of impact craters


Small meteorites constantly bombard the Moon and create micro-sized craters.

The featured micro crater in an olivine mineral grain is from the rock 12075, as seen in a scanning electron microscope. Comparison of micro-sized lunar crater with a small tardigrade and a human hair strand. Image sources: 1, 2.We don’t see such micro craters on Earth, as small meteorites burn up in our atmosphere before they even reach the ground.

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Photo of impact craters

impact craters