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

The history of astronomical discovery shows that many of the most detectable phenomena, especially detection firsts, are not ...

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

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

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

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 ...

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 ...

These movies are the pinnacle of 70s sci-fi and the hard science fiction subgenre - priortizing scientific accuracy over ...