So how long, and how much money has been spent looking for extra-terrestrial life? How long has SETI been looking for a signal from green men and how many billions have been spent with nothing to show? I for one sure am glad they money hasn't been wasted giving kids dying of malaria medicine. Or keeping Mono lake clean for that matter.
E.T., go home, go home!
So, would your religious belief be falsified if/when alien life is discovered?
Religious belief does not constitute scientific evidence, nor does it convey scientific knowledge.