When people imagine life on other planets, they often picture creatures unlike anything found on Earth. Perhaps they have ...

For years, the search for alien life has focused on Earth-like planets orbiting distant stars. But this episode explores a ...

There’s no data to suggest that aliens exist. However, if we believed they existed and came to Earth, our planet would offer them a somewhat risky buffet. There is liquid water, as well as salts, ...

With the release of Disclosure Day, Steven Spielberg’s new film about aliens, a question as old as science fiction itself resurfaces: if aliens were to arrive on Earth, would they come to conquer us, ...