Two months ago, scientists detected an unusual object entering our Solar System, sparking speculation about whether it is a ...

Scientists are watching a newly discovered object in space, and most of them agree it's a comet, but not all of them. A Harvard scientist, who believes he's seen proof of alien life before, suspects ...

Add Yahoo as a preferred source to see more of our stories on Google. (NewsNation) — A newly-discovered interstellar object speeding through the solar system should be investigated over the ...

There is a pretty pervasive and consistent assumption in our long history of UFO sightings: that the unidentified objects some of us see in the night sky are vehicles or crafts inside of which are ...