Life in the universe
Given the absolute massive size of just one star out of hundreds of billions that comprises just one galaxy out of hundreds of billions more, I think it impossible that there is not life somewhere. I'm not talking about the Star Trek sense where their planet is just like our with one teensy difference (i.e. the Nazi's won WWII or they're all Prohibition Era Gangsters). Life, in some form, must exist elsewhere. Maybe it's amoeba or germs or some form of life we can't fathom, but it's out there.