U.S. and Chinese satellites routinely spy on each other in orbit, rehearsing for more aggressive operations in the event of war.

(THE CONVERSATION) There are about 15,000 satellites orbiting the Earth. Most of them, like the International Space Station and the Hubble Telescope, reside in low Earth orbit, or LEO, which tops out ...

Shijian-21 lifting off atop a Long March 3B on Oct. 24, 2021. The Shijian-21 spacecraft later successfully docked with a defunct Chinese satellite to alter its orbit. Credit: CASC HELSINKI — China’s ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

"We see a future where thousands of Arc spacecraft form a logistics network that provides transformative reach, resilience, and deterrence for the United States and its allies." When you purchase ...

When we first started Spaceium, the idea of in-orbit refueling felt like something no one was really thinking about. Two years ago, when we spoke to other space companies, it wasn’t on the radar. We ...

A new Chinese freighter spacecraft arrived at the Tiangong space station last week, packed with supplies. Tianzhou 9 launched July 14 atop a Long March 7 rocket at 5:34 p.m. EDT (2134 GMT; 5:34 a.m.

Will Crowe, chief executive of HEO, shows how the company has improved imaging of spacecraft in low Earth orbit, such as the Tiangong space station. Credit: SpaceNews/Jeff Foust SYDNEY — An Australian ...

The next four-person team to live and work aboard the International Space Station departed from NASA’s Kennedy Space Center in Florida on Friday, taking aim at the massive orbiting research complex ...

Three Chinese astronauts have returned to Earth after they were briefly stranded at the nation's space station when space ...

Space probe isn't done after historic Pluto flyby. — -- New Horizons conserved energy by taking naps on its 3 billion mile journey to Pluto but the spacecraft isn't done yet and may have enough ...