Cometas e ADN - Rosetta

http://www.dailymail.co.uk/sciencetech/article-3612984/Was-life-carried-Earth-COMET-Key-building-blocks-DNA-proteins-discovered-Rosetta-spacecraft-67P.html


Citando:
"Glycine is the smallest of the 20 amino acids and is a key component in biological materials like collagen, which is one of the most abundant proteins in the body, forming bones, skin, muscles and tendons."