ARPA and Space Systems Loral (SSL) are developing the Robotic Servicing Geosynchronous Satellites (RSGS) mission to test ...

First, Russia has now joined the fray with the recent arrival of its own suspected inspector (or attack) satellite in GEO.

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 ...

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 ...

It's been decades since humanity first sent a satellite into orbit, and during all this time we kind of become experts at it. What we still haven't mastered yet is extending the life of these ...

WASHINGTON — A United Launch Alliance Vulcan Centaur rocket lifted off early Feb. 12 on a multi-manifest national security mission, sending payloads directly to geosynchronous orbit more than 22,000 ...