Space company Northrop Grumman said it conducted an autonomous docking test of the Cygnus resupply spacecraft with the ...

Northrop Grumman's Cygnus XL experienced main engine troubles that have hampered its resupply mission to the International ...

NASA has modified its ISS resupply contract with Sierra Space, which builds the robotic Dream Chaser space plane.

Norththrop Grumman's Cygnus XL has resumed its journey to the International Space Station after a day-long delay. NASA will provide a livestream.

A software glitch in the Cygnus XL caused its main engine to shut down earlier than expected, delaying the more than 11,000 ...

The capture by the International Space Station's robot arm came a day late because of an unexpected, but now resolved, ...

Sierra Space and NASA have renegotiated their contract for the Dream Chaser spaceplane that will allow the spacecraft to make ...

Sierra Space and NASA announced that the first flight of the Dream Chaser spaceplane has been pushed to late 2026, mission will no longer involve the ISS.

Launch recap: Scroll down to read updates from the NG-23 mission, which launched 6:11 p.m. Sept. 14 from Launch Complex 40 in Cape Canaveral Space Force Station. Original story: Another resupply ...

The Cygnus XL vehicle, was due to dock Wednesday, Sept. 17. But the vehicle then encountered trouble when its main engine that has delayed its arrival as engineers explore an alternate plan. The ...

The International Space Station (ISS) may never again be visited by a space plane. NASA's space shuttle orbiters were instrumental in building the ISS, and in keeping it operational for its first ...