Stepped-up interest in UFOs also is swirling as the United States heads back toward the moon with Wednesday's launch of ...

The president promised to spill the beans about little green men. Is that why the US Cybersecurity and Infrastructure Security Agency registered the domains alien.gov and aliens.gov, asks Arwa Mahdawi ...

As Trump orders UFO file release, scientists debate a deeper question—if aliens exist, what would they think of humanity?

New SETI research suggests space weather like solar winds could be interfering with alien radio signals, making them harder to detect.

Astronomer Jill Tarter has been scanning the skies for signals from intelligent aliens for the past 35 years, but now she's making a career change. Tarter, the inspiration for heroine Ellie Arroway in ...

Over hundreds of thousands of years, humans somehow evolved a type of intelligence found nowhere else in the animal kingdom, at least on Earth. According to the most famous theory describing the ...

A recent SETI Institute study suggests that space weather could blur and weaken extraterrestrial radio signals long before ...

A provocative theory circulating among artificial intelligence researchers suggests that once machines achieve human-level intelligence and beyond, they might create something entirely unexpected: a ...

A recent theory proposed by a NASA scientist suggests that extraterrestrial civilizations may not possess the wildly advanced technology that many UFO enthusiasts expect. This perspective, which ...

E.T. could be phoning home — but we’re not hearing the call. A new study published in The Astrophysical Journal argues that “space weather” could be distorting incoming transmissions from ...