The object, called 3I/ATLAS, is only the third interstellar visitor ever detected passing through our Solar System.

Astronomers swept millions of candidates and found no alien signals from K2-18b, setting the first power limit on any ...

Only 6.6% of surveyed astrobiologists agreed that scientists had probably found extraterrestrial life on exoplanet K2-18b.

Even though astronomers didn’t detect alien tech signals from a rare interstellar visitor, the results are worthwhile, they ...

A moment early on in “Disclosure Day” will instinctively feel familiar to anyone who grew up with Steven Spielberg films. A ...

The SETI Institute said Wednesday that extensive radio scans by its telescope in Northern California found no signs of ...

When the Trump administration registered the domains Aliens.gov and Alien.gov in March, UFO conspiracy theorists wondered ...

The group leading the charge in the search for extraterrestrial life has given the all clear. The SETI Institute said ...

A haunting sci-fi movie left critics fascinated by its cold, uneasy atmosphere and a lead performance that feels almost ...

A migrant advocacy organization that helps refugees throughout the world is taking offense to a White House website that says ...

Plenty of alien invasion movies have become box office hits and certified classics, but here are some forgotten alien ...