occurred around a very distant star could have favored the formation of a type of amino acids over the other.
Daniel Glavin, an astrobiologist at NASA
Experiments showed that the circularly polarized light both versions of driving left and right hand of amino acids. But there were just over 1% additional versions left. This is the same level of excess that Professor Glavin and his colleagues found in meteorites found on Earth, and the mechanism is a fact to argue convincingly the extraterrestrial origin of the first amino acid of the Earth.