No.
It's impossible to be completely certain, obviously, but there's absolutely no credible indication that extraterrestrial life is visiting the Earth, and the common theories for what ETs would be doing abducting people just do not make any sense.
No.
It's impossible to be completely certain, obviously, but there's absolutely no credible indication that extraterrestrial life is visiting the Earth, and the common theories for what ETs would be doing abducting people just do not make any sense.
I edited the voting options from "certain" to "certain or almost certain", in case you'd like to change your vote.
I don't think so. I think that "almost certain" isn't appropriate given that I don't think we have that good of NEGATIVE indicators to the contrary.