NASA will rely on them to send astronauts to the International Space Station
When the Cygnus supply ship arrived at the International Space Station in July with cargo that included food, science equipment and mini-satellites, the...
Elon Musk's bid to build NASA's new space taxi
The state-of-the-art Dragon spacecraft will carry NASA astronauts to and from the International Space system
U.S. astronauts Rick Mastracchio and Michael Hopkins are making a rare Christmas Eve spacewalk to fix vital cooling systems on the International Space Station. ...
The pair live-stream the spacewalk from their helmets
A malfunctioning pump has halted research and left the International Space Station vulnerable
The second American to orbit Earth was also one of two remaining astronauts from NASA's Mercury program
While in space, NASA astronaut Karen Nyberg demonstrates how to run on a treadmill
NASA's Kelly brothers offer science a rare chance to study how space affects the body