Why is life left-handed? Researchers still try to blame meteorites and finding one amino acid with predominate leftness has them all excited. Most meteorites show almost 50/50 distribution, when life's aminos are present; only eight of 20 found in meteroites so far. This is one amino finding in one meteorite. Hope presses on to prove life is accidental and by chance:-http://phys.org/news/2012-07-clue-life-left.html