Assertion: meteoroid's origin | /r/HasProperty | prevented by enormous flux
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text: According to NASA's Center for Near Earth Object Studies CNEOS), "It seems possible that the origin of life on the Earth's surface could have been first prevented by an enormous flux of impacting comets and asteroids, then a much less intense rain of comets may have deposited the very materials that allowed life to form some 3.5 - 3.8 billion years ago.