What’s really cool is that if life can exist somewhere it doesn’t take a seed from somewhere else. In physical terms life is localized order at the expense of external entropy to a greater degree because of inefficiency. In other words life accelerates the death of the universe. By that definition we are no different from a star or a virus. So, given enough time and energy on any given planet, life will come to exist at some point although it might not look like what we expect. Incidentally, obeasts are the most inefficient form of life in the known universe, exceeding the excess energy consumption of supernovas.