Using NASA's Chandra X-ray space telescope, astronomers have discovered that a galaxy cluster is wrapped in an envelope of ...

The show is a rare "triple conjunction" — when Venus, Saturn, and a thin crescent Moon align in the pre-dawn sky, resembling ...

The world's first commercial space station is available as a virtual reality experience even before it is launched into space ...

Sally Ride, the first American woman and the third woman to fly in space, kept a part of her life hidden for over 27 years, which was only revealed after she died. A new documentary on the space ...