The Primordial Soup theory of the origins of life on earth has been cooling for years. Probably, by now, it's too cold to reheat.
Abiogenesis, or the study of how life originated from Earth (and Universe) stuff, connects the Earth and Life sciences, for me.
A research team from the University College, London focused their new research into the origins of Earth life on deep sea vents
, where geochemical gradients across microscopic caverns could have acted as catalytic cells, generating precursors of the carbon and energy metabolism found in all organisms, which the first true, free-floating living cells internalized, they conclude.