The crew underwent hours of secret medical tests that accessed the effects of microgravity, radiation exposure and stresses of space travel. Although NASA had personnel to help all four of the ...

NASA wasn’t so dependent on private companies when it conceived Project Mercury, the country’s first human spaceflight program. Given the pressures of the space race against the Soviet Union ...

The replacement crew for the International Space Station was launched late Friday, paving the way for the return home of Butch Wilmore and Suni Williams, two NASA astronauts stuck on the space ...

two NASA astronauts safely returned to Earth aboard a SpaceX (SPACE) spacecraft, ending a long mission that drew global attention and posed a challenge for Boeing’s (NYSE:BA) space program.

stirring fear among space contractors and U.S. allies that the president and his future NASA administrator could upend years of work and investments toward a multi-mission lunar astronaut program.

Senior NASA officials earlier this month confirmed, publicly and on the record, that the decision was made by the space agency in the best interests of the International Space Station Program.