This claim was, in fact, true. McCandless was, indeed, the first astronaut to perform an untethered spacewalk on Feb. 7, 1984 ...

The International Space Station - a blazing symbol of humanity’s destiny to move out across the cosmos - must be saved from ...

Dragon isn't the first U.S.-built spacecraft to lend its fuel to the space station's orbit. NASA tested an ISS orbit reboost ...

Endeavour’s 26th mission was a lot slower and a lot shorter than the previous 25, but it was still full of fascinating ...

A version of the Centaur was developed but never flown on the space shuttle. In its most recent configuration, the ...

Beautiful art deserves to be housed in a beautiful building, and these museums deliver with stunning architecture that ...