Avi Loeb, a Harvard astronomer who has made headlines with his theories about alien encounters, will lead a White House ...

A controversial Harvard University cosmologist who has suggested alien lifeforms could be sailing into the solar system disguised as meteors is leading the Trump administration’ ...

As much as Steven Spielberg likes aliens, he seems to prefer holding them at arm’s length. The creatures in Close Encounters ...

Somewhere out there, a planet roughly the size of Earth may be orbiting a distant star in conditions that could support life.

Hackers breached Brazil’s national emergency alert system overnight on June 19 and 20, sending fake notifications to ...