SES's ninth and tenth O3b mPOWER satellites have arrived at Cape Canaveral where they will be readied for launch by SpaceX in ...

Up until now, satellites have not even been designed with refueling in mind, because, well, it wasn't possible. That will change if China can prove otherwise.

China's Shijian-21 and Shijian-25 satellites had been moving toward each other in geosynchronous orbit, around 22,236 miles ...

GAO has long warned the program’s first launch would be delayed at least a year. Those projections could prove true, but ...

Finally, the Earth moves a little bit beyond one complete revolution, so the stick again points towards the sun for a second ...

Small geosynchronous Earth orbit (GEO) satellites have been an increasingly discussed design trend in the industry, boasting the same regionalized scope as traditional GEO models at a price point ...

Northrop Grumman has written a new line in the history books, the company's Mission Extension Vehicle 1 (MEV-1) executing the first undocking of two commercial satellites in geosynchronous earth ...

What resulted is, according to the company, the first undocking between two commercial spacecraft in the geosynchronous earth orbit (GEO) graveyard.

President Donald Trump’s fiscal 2026 budget request, if approved by Congress, would kill many of NASA’s plans for robotic ...

Geosynchronous Orbit: An orbit in which a satellite’s orbital period matches the Earth’s rotation, enabling continuous observation of the same geographical area.

This is notable, since Shijian-25 was specifically designed to test on-orbit refueling capabilities, per Space News. ... (which is what you need for geosynchronous Earth orbit, or GEO).