http://www.heritagedaily.com/2016/06/bui...ace/111863
Quote:‘Building blocks for life’ may originate in space
Quote:In 2014 the Rosetta space probe reached a comet that is orbiting in our solar system. A small lander vehicle detected the presence of glycine on the comet, an unexpected discovery as the glycine molecule is an amino acid. Amino acids form the basis for proteins, and are an essential element of all life on earth. But how did these amino acids come to be present on earth?