Scientists looked deep into the universe to find a structure that looked like two dancing ghosts. The "ghosts" are made up of electrons jetting out of "radio galaxies," the scientists found.

PHOTOS: Northern lights illuminate San Diego ... so I could later put together a short time-lapse of the lights dancing in the sky.” The photographer ended up capturing two time-lapses of ...

Venus and the moon created a spectacular sight in the western sky Sunday night, appearing inches away from each other. A crescent moon sat to the right, just two degrees from Venus by mid-twilight.

Spectacular photos have captured the Northern Lights in the skies above Iceland. Pictures of the phenomenon taken last night show sheets of green light dancing in the sky. "Might be the best night ...