The belief that there are other life forms in the universe is a matter of faith. There is not a single shred of evidence for any other life forms, and in forty years of searching, none has been discovered. There is absolutely no evidentiary reason to maintain this belief.
Whenever you hear the consensus of scientists agrees on something or other, reach for your wallet, because you`re being had.
Historically, the claim of consensus has been the first refuge of scoundrels; it is a way to avoid debate by claiming that the matter is already settled.
(First line of his autobiography): "It`s not easy to cut through a human head with a hacksaw."
I am certain there is too much certainty in the world.