A viral video shows mysterious colorful lights moving in the night sky over Vancouver, sparking debate and curiosity online.

A bright object, initially appearing to be a meteorite, lit up the skies over Mexico’s capital around 3 a.m. Wednesday, stretching over plains, volcanoes and small towns.

It's not the first time researchers have found a planet like the one in Star Wars, but this alien world has a particularly ...

Astronomers have discovered a strikingly unusual exoplanet: one which orbits its host stars in a totally new way. The planet ...

Astronomers have confirmed that interstellar objects—cosmic bodies originating from other stars—are passing through our solar ...

The footage shows an object moving in circular patterns, emitting vibrant lights as it floats through the sky.

In late 2017, a mysterious object tore through our solar system at breakneck speed. Astronomers scrambled to observe the fast ...

A declassified CIA document which has gone viral claims that 23 Soviet soldiers were attacked by aliens and 'turned into ...

The Galileo Project at Harvard University is a group of researchers who are working to scan the entire sky and analyze the ...

These icy bodies contain organic molecules — and don’t fall into any known category of celestial object we’ve seen before.

New Navy footage shows four UFOs rising from the ocean off Southern California, shared by Jeremy Corbell and George Knapp.