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

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.