HELSINKI — China is expanding its presence and capabilities in the strategically vital geostationary belt, raising security concerns due to unpredictable satellite movements, according to experts.

China is currently conducting a very important test in space: it is trying to refuel a satellite while it is still orbiting Earth. This kind of operation is called orbital refueling, and it could help ...

4iG Space and Defence Technologies and France-based Eutelsat have signed a Geostationary Orbit and Frequency Licence Agreement securing the orbital position and associated frequency rights for HUGEO, ...

Liftoff of the "Commercial GTO-1" mission occurred at 1:04 a.m. EDT on Sunday morning (July 13). When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.