Why are we allowing unidentified objects to operate with impunity in our skies?” one expert testified Tuesday.

Aliens are back in vogue. Haven't you heard? Fascination with little green men piloting saucer-shaped UFOs was long the purview of tinfoil-hat wearing conspiracy theorists and "X-Files" devotees. But ...

A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the Trump administration to ...

State and local offices across Washington are being directed to remove the word “alien” from state statutes and replace it with “noncitizen” under a new law aimed at modernizing legal language. The ...