ocr: How often do meteorites hit the Earth? Objects from space, known as meteorites, strike the Earth quite trequently. As two-thirds of our planet's surface 1s covered by water, most meteorites fall unseen into the ocean. In the last thousand years, there 1S no record of anyone being killed by a falling meteorite. However, larger rocks have been known to hit the Earth. The biggest crater to have been found is an underwater basin just off the coast of Mexico, known as Chicxulub. Itis thought to have been created bya meteorite about 65 million years ago. The impact was so large that debris blocked o ...