A secretive mission will pass a quiet milestone at the end of this month when the U.S. Air Force's unmanned spaceplane the X-37B surpasses 500 days in space.
While the United States and Russia traded sanctions this week in a burgeoning crisis over Crimea, astronauts from both nations rose above the discord in their sanctuary hundreds of miles from Earth.
Orbital Sciences Corporation's unmanned Cygnus spaceship is on track to berth with the International Space Station early Sunday, marking its second trip to the research outpost, the company said.
Kansas State University researchers are improving astronauts' outerwear for outer space.
The first test mission of a new deep space capsule that could one day take humans to Mars is on track for September 2014, the US space agency said Tuesday.
A privately-operated unmanned cargo ship built by Orbital Sciences Corporation left the International Space Station on Tuesday after its first successful demonstration mission, NASA said.
A private cargo ship built by Orbital Sciences Corporation is preparing to leave the International Space Station early Tuesday and burn up on re-entry into Earth's atmosphere, NASA said Monday.
NASA has accepted ownership of its newest Tracking and Data Relay Satellite (TDRS) from Boeing after successfully completing in orbit testing. TDRS-K, will be renamed TDRS-11 upon entry into service.
The U.S. Navy and NASA are testing out how they'll recover astronauts once they splash down in the ocean following future missions to deep space, something a Navy crew hasn't had to do in nearly 40 years.
Sierra Nevada Corporation's winged Dream Chaser engineering test article is moving forward with a series of ground tests at NASA's Dryden Flight Research Center in California that will soon lead to dramatic aerial flight ...