More Evidence That Comets May Have Brought Life to Earth

Halleys Comet, as seen in May 1986. Credit and copyright: Bob King.

Halleys Comet, as seen in May 1986. Credit and copyright: Bob King.

The idea of panspermia — that life on Earth originated from comets or asteroids bombarding our planet — is not new. But new research may have given the theory a boost. Scientists from Japan say their experiments show that early comet impacts could have caused amino acids to change into peptides, becoming the first building blocks of life. Not only would this help explain the genesis of life on Earth, but it could also have implications for life on other worlds.
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