China’s Shijian-21 and Shijian-25 satellites, known as SJ-21 and SJ-25 for short, likely docked together in geosynchronous ...

China’s successful orbital satellite refueling operation marks a historic milestone that the US has not achieved.

Two Chinese satellites reportedly performed what appears to be the country's first high-altitude orbital refueling, as U.S.

The event, not so far confirmed by China, was reported after optical sensor data suggested the satellites "appeared visually ...

SpaceX launched a mystery satellite to geostationary transfer orbit (GTO) from Florida's Space Coast early Sunday morning ...

About the mission The 23 satellites from the Starlink company, owned by SpaceX, will be heading to low-Earth orbit to join the thousands already there.

The 21 satellites from the Starlink company joined the more than 7,000 that are already in low-Earth orbit. Once deployed and in their orbit, they will provide internet service to many parts of Earth.

The Milky Way could have many more satellite galaxies than scientists have previously been able to predict or observe, ...

SPHEREx is scanning the entire sky in 102 infrared colors, beaming weekly data to a public archive so scientists and citizen ...

Earth has rarely looked as remarkable as it does in this stunning shot (above) captured by NASA astronaut Don Pettit from the International Space Station (ISS).