NASA ISS livestream switches to a signal-loss slate after a bright object crosses the frame, sparking UFO questions online as NASA cites routine automated handoffs.

The three-person crew will spend about eight months aboard the orbital laboratory conducting scientific research. This mission comes as the ISS marks 25 years of continuous human presence in orbit.

NASA and Northrop Grumman had delayed the arrival of a Cygnus XL spacecraft to the orbital outpost after an issue with its main engine was detected. Flight engineers were able to determine that it ...

When Sierra Space won a contract to deliver cargo to the International Space Station nearly a decade ago, the company promised a first for the commercial space market: a privately built, rapid reuse ...