A Lovecraftian Origin of Life?
Here's one I'm hoping proves itself over time, if for no other reason but to make my ancestors more interesting when I imagine them!!

"Professor Martin and Dr Russell have long had problems with the existing hypotheses of cell evolution and their theory turns traditional views upside down. They claim that cells came first. The first cells were not living cells but inorganic ones made of iron sulphide and were formed not at the earth's surface but in total darkness at the bottom of the oceans. Life, they say, is a chemical consequence of convection currents through the earth's crust and in principle, this could happen on any wet, rocky planet."

Hooray for Vacation! :)