Jordan Flowers claims Russia and China may be reverse-engineering alien technology, raising national security concerns.

This video breaks down why K2-18b has suddenly become one of the most important planets in the search for life beyond Earth. Using data from the James Webb Space Telescope, researchers reported ...

The Pentagon released over a hundred newly declassified files related to UFOs (now officially referred to as Unidentified ...

NASA is racing to save the Swift telescope from fiery reentry with a $30-million robotic rescue, launching a three-armed ...

The Alien's Revenge update introduces Alien Outposts, a repairable Command Ship, a Mothership raid, exclusive rewards, and ...

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 ...

A strange interstellar comet discovered last year and speculated by a prominent astronomer to be an alien spacecraft could be ...

An interstellar comet that blazed past the Sun last year could be nearly three times older than our Solar System.

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

A NASA astronaut preparing for a grueling eight-month stint in orbit reveals a plan to test for extraterrestrial life.