Stop me if you've heard this one (or something like it) before: the Earth is dying, and humanity's last hope is a lone ...

The Pentagon on Friday began releasing “never-before-seen” files relating to unidentified anomalous phenomena — previously ...

Among the most startling revelations is a 1966 FBI memo detailing reports of small, space-suited figures emerging from ...

An oddity among exoplanets, L 98-59 d is (so far) in a class all its own, but astronomers expect powerful new telescopes will ...