Are there any craters on earth created by meteors?
Earth’s atmosphere gives it more protection from meteor impacts than the Moon, Mercury, or even Mars have. However, astronomers believe the whole world has been peppered by meteors. Another thing Earth has that places like the Moon don’t, however, is weather and the erosion that weather causes. Erosion tends to wear down meteor craters fairly quickly; quickly, that is, on a geological time scale, where a few million years one way or another is hardly worth worrying about. Because of erosion only the newest meteor craters on Earth can be easily seen. Some slightly older ones show up in the shape of lakes and such, but aren’t obvious from the ground. A little older still and a crater might show up as a geophysical anomaly, such as an odd contour to the local magnetic field for example. But the really old craters are just gone.
