The question of life in other solar systems. We may not be able to answer it today, but with the proper technology, we can answer it eventually. The question of whether God exists can never be answered by science. It is impossible by definition.
One, as I said above...WE CANNOT ANSWER IT.
Not now...which is what we are talking about.
As for whether any gods exist...how do you know it cannot be answered at some point. If there are gods...and those gods have made all of what now exists...surely they can reveal to science that they exist.