Many have claimed to see a UFO or have an encounter with an alien, but what do the scientists have to say? Here's what ...

Part of a spacecraft that has been stuck in orbit for 53 years is due to reenter Earth’s atmosphere around May 10 and could ...

A defunct Soviet satelitte is slated to hurtle back to Earth next week, prompting concerns from space experts that we could ...

In the summer of 1995, Robert Williams, then director of the Space Telescope Science Institute, which manages the Hubble ...

What's it really like to fall into a black hole? Some people guess it'd be like traveling through a wormhole to a distant ...

Scientists have discovered a gigantic, glowing gas of hydrogen gas lurking just 300 light-years away. As detailed in a paper ...

An international team led by a Rutgers University astrophysicist has discovered a vast, potentially star-forming cloud of ...

With four people through to the Top 24 and 20 spots left in the competition, "American Idol" contestants are running on fumes. In Monday night's episode, the remaining 42 singers, sleep deprived ...