Does sciences can give all answer about the origin of life?

Of course not. Science is a method of studying facts with supporting proof (This is the limitation of science). We gather information & data, grouping and analysis (including mathematical analysis). Propose a hypothesis, re-experiment to prove and a theory come out. If the theory is not challenged or turn down by another theory, and repeat experimentation had proved the uniqueness and constant outcome, we call it a law (定律).

Since we have very little evidence, data for a theory to explain the origin of life, we can only call those answers about the origin of life a hypothesis as we cannot experiment or prove with supporting. Thus we cannot call studying the origin of life a scientific study. If only mathematical analysis but not evidence or experimentation for a study, we will call this meta-physics (玄學) and not science.