Comet impacts may have led to life on Earth — and perhaps elsewhere

19 August 2015

Comet impact on Earth are synonymous with great extinctions, but now research shows that early comet impact would have become a driving force to cause substantial synthesis of peptides — the first building blocks of life. This may have implications for the genesis of life on other worlds.
http://www.sciencedaily.com/releases/2015/08/150819083326.htm