Scientific theory that seeks to explain the origin of life from matter physico-chemical reactions, because science can not admit that life is God's creation as admit believers. Science is based on empirical data and what you can see, not in belief. God is not verifiable or not to create life, then you need to find a scientific explanation. Many biologists have sought it. An example: the Russian biologist of the century XX Aleksandr Oparin Ivánovich which mentions the coacervatos, as the basis of life, aggregates of molecules together by electrostatic forces, synthesized abiotically, which after many reactions and much time would have resulted in the cell. We still have long way to go in understanding.