The alleged transparent extraterrestrial was photographed by a police officer on 6 May 2011.

If traveling more across America is on your bucket list, these are the offbeat treasures you need to see in every state.

An oddity among exoplanets, L 98-59 d is (so far) in a class all its own, but astronomers expect powerful new telescopes will ...

Flying discs, metallic orbs, and a mysterious cylinder tumbling past the Apollo spacecraft. Those are just a few of the ...

A study from U.S. and Chinese researchers suggests Neanderthals and early modern humans probably had similar cognitive ...