advancing science is trying in places we know we don't know about, not repeatedly trying to overturn something that we know about and observation (what do you t

advancing science is trying in places we know we don't know about, not repeatedly trying to overturn something that we know about and observation (what do you think those spacecraft do) all agreed on. It's like complaining on why people don't try to build a perpetual machine - it's because it is not possible. You're welcome to keep trying though.