This is to do with something called object permanence, an idea of understanding that even when you can't see something, it still exists, something that babies genuinely do struggle with. So how about ...

A WACKY couple have driven a flying saucer car 1,000 miles across the US to attend the planet’s biggest alien festival and ...

Scientists suggest that advanced aliens might not have physical bodies, challenging traditional views of extraterrestrial ...

Beyond the Black Rainbow, Psycho Goreman, and The Endless are all among the best sci-fi horror movies of the last 20 years ...