In the spirit of Halloween, scientists are releasing a trio of stellar ghosts caught in infrared light by NASA's Spitzer Space Telescope. All three spooky structures, called planetary nebulas, are in ...

Casper, the friendly ghost and the ghostly trio of Fatso, Stinky and Scratch literally bring the roof down as they rescue two friends from a haunted castle in a spectacular stage production of Casper ...

The activities of ghostly beings can be terrifying -- or at least unnerving -- for the mortal witnesses. There are, however, some spirits whose actions provide entertainment for mortals. Three Napa ...