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

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

A newly spotted interstellar visitor just got an unusually close listen from California scientists — in a search for signs of ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

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

SETI scientists searched the interstellar object 3I/ATLAS for radio signals that could indicate extraterrestrial technology ...

Even at this early stage in our spacefaring age, humanity has already begun sending probes that will eventually reach other solar systems, even if that was not their original intention. Five robotic ...

It’s true! Spielberg didn’t come up with the title out of thin air — Disclosure Day is a real thing that organizations like the SETI Institute (which stands for Search for Extraterrestrial ...

This article contains spoilers for Disclosure Day. For a movie titled Disclosure Day (review), the new Steven Spielberg film sure keeps things mysterious for most of its 145-minute runtime. Trailers ...