Is there anybody out there? Greg/CC0
Are humans alone in the universe? Three philosophers from Oxford University have studied the existing scientific literature to conclude that we probably are.
This seems to have upset some people. 鈥淚鈥檝e already got many emails from people who say I鈥檓 wrong because we鈥檝e already met aliens,鈥 says Anders Sandberg, who led the work.
Contrary to , however, Sandberg says scientists are quite optimistic that we have galactic neighbours. Of some 80 papers the team examined, 64 per cent estimated there were at least 100 extra-terrestrial civilisations…
