[donh]

I love it: now the prevailing theory is that life came from meteorites

The prevailing theory is that life happened on the mudball you are standing on.

[Loc123]

I'm afraid you are mistaken, my friend.

Life "evolving" on planet Earth encounters unsurmountable problems, some of which being achirality of all organic molecules without reason, inability to find a hydrophobic environment to link peptide chains (IE not just disparite amino acids and not abiotic addition polymers), lack of stable environment to allow any magical protocell to exist for a measurable amount of time, etc.

So, to escape these high improbabilies, origins researchers contend that life came from a meteor--which incidentally passes the buck to another, more "hospitable" planet. Certain meteors containing achiral (L) amino acids (that might be achrial due to intersteller radiation, but that is a hypothesis) in groups is their best evidence..though it also has great problems (aside from its merely passing of the buck)....