|meteorite171210 (NASA/Peter Jenniskens)|
Glavin said "Finding them in Ureilite meteorites suggests there's more than one way to make amino acids in space. And as the proteins and enzymes of life are based on amino acids, it increases the chance for finding life elsewhere in the universe."
As this meteorite was found on earth, how do we know the found amino acids are not a contamination? "Amino acid molecules appear in two forms that are mirror images of each other," Glavin says. "Life on Earth uses only left-handed amino acids. But these were both left- and right-handed, meaning they had to come from space rather than Earthly contamination."
Life's building blocks found in meteorite › News in Science (ABC Science)