(cokada/iStock/Getty Images) Alien megastructures built to harvest stellar energy or alter the orbits of stars may be ...

Comet 41P/Tuttle-Giacobini-Kresak has begun acting a little unusually, but there are likely natural explanations before we go ...

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

Scientists have uncovered a surprising way to study the harsh space weather around young M dwarf stars. Mysterious dips in ...

A video, now viral on the social media, shows a bright object slowly falling from the sky over Indonesia, triggering claims ...

A strange purple object aboard the ISS sparked alien fears online, but NASA revealed it was a potato experiment. It shows how ...

For more than a century, popular culture has trained us to picture extraterrestrials as bug-eyed, bipedal “little green men” who look suspiciously like us in rubber suits. The scientists who actually ...

SETI Institute researchers suggest solar winds may have obscured alien signals by widening their frequency bands, potentially causing us to miss evidence of extraterrestrial life. This discovery, ...

Debunking alien claims matters, but so does telling richer, more compelling stories about how humans shaped their own past.

This study ranks Florida among the top states for alien abduction reports, where you have 1 in 1,102 odds of an ...

Renowned science fiction creator Ridley Scott helmed an 18-episode series that served as the perfect sequel to his ...