A Falcon 9 rocket carrying about 40 payloads, including NASA's Pandora exoplanet satellite, is scheduled to lift off from California's Vandenberg Space Force Base during a 57-minute window that opens at 8:19 a.m. EST (1319 GMT and 5:19 a.m. local California time).

NASA has spent the last few weeks getting ready for two spacewalks at the International Space Station (ISS), its first in eight months. But just hours before NASA astronauts Mike Fincke and Zena Cardman were due to begin the first of the two walks on Thursday,

A SpaceX Falcon 9 launched a trio of NASA astrophysics small satellites along with dozens of commercial spacecraft on a rideshare mission Jan. 11.

A planned spacewalk outside the International Space Station was scrapped because of what NASA called a "medical concern" with an unidentified crew member.

It will be the first time in the space station’s 25-year history that a mission will be cut short because of a medical incident in space.

NASA is considering the early return of Crew-11 from the International Space Station after an unidentified astronaut experienced a medical problem.

Scientists are using the cutting-edge satellite technology from the NASA-ISRO Synthetic Aperture Radar (NASIR) to rethink how we understand earthquakes.

The early departure of Crew-11, leaving Williams as the only US astronaut aboard, also means NASA will be unable to perform spacewalks. This will mean a “slightly elevated risk” in NASA’s ability to respond to a major hardware failure that might require a spacewalk to fix, said Amit Kshatriya, the agency’s associate administrator.

NASA's SPHEREx telescope unveiled its first full-sky map of the universe, combining more than 100 infrared observations into one dazzling mosaic. Half a year after first opening its eyes to the cosmos, NASA 's SPHEREx spacecraft has unveiled its first complete, all-sky mosaic of the universe.