Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

It was a close encounter of the Schiff kind. President Trump made an out of this world jibe when he was allegedly briefed on ...

Scientists say moons around rogue planets wandering through the galaxy could remain warm enough for life thanks to tidal heating and hydrogen-rich atmospheres. These dark, starless worlds may have had ...

I tested a $125,000 humanoid robot. It couldn't read my emotions, but its jokes and sense of humor made it feel surprisingly human.

Are aliens real? Was Fox Mulder right all along? We examine the prediction markets to gauge if the U.S. government will confirm that aliens exist before January 2029. The prediction market on a U.S.

In the second season of “Sugar,” Colin Farrell’s character has to deal with life alone.