Infinite cosmos...We as a human not even explored 1%..What makes you think that there no life somewhere else?..Just because it seems not possible right now doesn't mean it doesnt exist or can't happen..I mean who would have thought 150 years back that humans are gonna go to space or to the moon.But we did it..Right?...Again why did think NASA stopped sending men or machines to moon?....Specifically to the dark side of the moon..They accomplished much harder missions than that..but why not moon....Universe is lot bigger than to speculate..Why is the congress holding sessions than about UAP's..There are lots of unanswered questions my friend..