DARPA has a plan to keep geosynchronous satellites going for years beyond their expiration date. The agency aims to test it with a mission launching as soon as this summer.
The world’s leading space powers desperately want to know what the others are up to high above the equator. For more than a decade, the US military has operated a fleet of “inspector” satellites ...
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 ...
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