The following video was declassified by the National Reconnaissance Office (NRO).
Russia, a critical partner in the operation of the International Space Station, is threatening to stop its work on the station by 2020.
NASA is planning to send astronauts to an asteroid in the 2020s, and preparations are already being made.
The next generation of American spacecraft designed to carry people into low-Earth orbit will be required to function as a lifeboat for the International Space Station for up to seven months.
While spiders were busy spinning webs in space, researchers on Earth weaved their knowledge of this activity into educational materials to inspire and motivate students.
NASA's Z-2 Suit is the newest prototype in its next-generation spacesuit platform, the Z-series.
In celebration of the 24th anniversary of the launch of NASA's Hubble Space Telescope, astronomers have captured infrared-light images of a churning region of star birth 6,400 light-years away.
Astronomers are announcing today that they have acquired the first direct evidence that gravitational waves rippled through our infant universe during an explosive period of growth called inflation.
For the first time in more than a decade, five NASA Earth science missions will be launched into space in the same year, opening new and improved remote eyes to monitor our changing planet.
A University of Colorado Boulder research center will launch two payloads aboard Orbital Sciences Corp.’s commercial Cygnus spacecraft
NASA's Curiosity Mars rover and its recent tracks from driving in Gale Crater appear in an image taken by the High Resolution Imaging Science Experiment (HiRISE) camera
A giant crane will tower above NASA's Jet Propulsion Laboratory in Pasadena, Calif., shooting out of a hilly mesa like an oversized erector set
The first Cygnus Spacecraft to visit the International Space Station (ISS), the G. David Low, departed the station at 7:31 AM EST on October 22, 2013.
The astronauts on board the International Space Station saw a strange and unexpected view out their windows yesterday.
1-14 of 29