The recent discovery of an Earth twin has boosted chances there is intelligent life on other planets. But while Pope Francis's telescope scans the starlit skies, the Vatican is sceptical of ever meeting Mr. Spock.
It sounds like a science-fiction nightmare. But "killer robots" have the likes of British scientist Stephen Hawking and Apple co-founder Steve Wozniak fretting, and warning they could fuel ethnic cleansing and an arms race.
In the sci-fi thriller "Ex Machina," the wonders and dangers of artificial intelligence are embodied in a beautiful, cunning android named Ava. She puts her electronic smarts to work with frightening results, manipulating ...
Have a question about artificial intelligence and think theoretical physicist Stephen Hawking is the man to ask?