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

The Great Filter theory is reviving debate over why humanity has never found intelligent alien life. Scientists say advanced civilisations may destroy themselves before making contact Pinterest The ...

Scientists have identified new clues that could help astronomers spot one of the most famous hypothetical alien ...

Why do we tend to assume that UFOs are crafts carrying alien beings rather than alien beings themselves? How the UFO ...

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.