:::::::: I think the issue of siderophilic elements is a legitimate one, and possibly a falsifier. I'm not up-to-date on the literature but I am guessing planetary scientists are working on ways to amend the giant impact hypothesis which incorporate the lack of such elements. Evidence that the earth has never had a magma ocean would also be a falsifier, but maybe scientists will find a way around that one, too. On a more obvious level, direct evidence that the earth-moon system isn't billions of years old (for example) would also completely be a falsifier. I don't think that a theory being subject to amendment in the light of new discoveries renders it unfalsifiable, but it's your encyclopedia and not mine (and that is an interesting debate in the philosophy of science). [[User:TaKess|TaKess]] 15:34, 3 April 2009 (EDT) | :::::::: I think the issue of siderophilic elements is a legitimate one, and possibly a falsifier. I'm not up-to-date on the literature but I am guessing planetary scientists are working on ways to amend the giant impact hypothesis which incorporate the lack of such elements. Evidence that the earth has never had a magma ocean would also be a falsifier, but maybe scientists will find a way around that one, too. On a more obvious level, direct evidence that the earth-moon system isn't billions of years old (for example) would also completely be a falsifier. I don't think that a theory being subject to amendment in the light of new discoveries renders it unfalsifiable, but it's your encyclopedia and not mine (and that is an interesting debate in the philosophy of science). [[User:TaKess|TaKess]] 15:34, 3 April 2009 (EDT) |