The OEO satellite promises a geosynchronous orbit around the equator, low latency, and a drastic cut in costs—using readily available technology. Thousands of satellites have been deployed during ...

First, Russia has now joined the fray with the recent arrival of its own suspected inspector (or attack) satellite in GEO. Second, the US Space Force is poised to order more—perhaps many ...

Two Chinese satellites have completed what could be a first for in-space rendezvous and refueling efforts. They came together in a geosynchronous orbit and have since maintained a steady orbit ...

A geosynchronous orbit (sometimes abbreviated GSO) is an Earth-centered orbit with an orbital period that matches Earth's rotation on its axis, 23 hours, 56 minutes, and 4 seconds (one sidereal day).

DARPA is preparing to test one of the most ambitious orbital servicing missions ever attempted: a robotic spacecraft capable ...

A famously unlucky date is getting a cosmic twist. NASA says the asteroid Apophis will safely pass close to Earth on Friday, April 13, 2029, coming about 20,000 miles from the planet's surface. That ...

With a two-year delay, a robot is to be launched into space this summer to maintain, retrofit, and repair satellites in ...