Disclosing government documents about UFOs won't mean much without hard physical evidence for alien spaceships or alien bodies.

President Donald Trump has promised to declassify top-secret alien files and UFO documents. Here is what the Pentagon has ...

For more than a century, popular culture has trained us to picture extraterrestrials as bug-eyed, bipedal “little green men” who look suspiciously like us in rubber suits. The scientists who actually ...

Former President Barack Obama said he did not see evidence that aliens “have made contact with us,” after sending social ...

For more than six decades, astronomers have listened for possible signals from extraterrestrial civilisations, with no confirmed detection to date. A .