Arctic naval operations expose a communications gap because equatorial military satellites cannot reliably cover polar regions, pushing the Pentagon to consider new satellite and airborne relay ...

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 ...

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).

United Launch Alliance’s Atlas V rocket returned to action Sunday with a mission to deploy multiple satellites into geosynchronous orbit for the National Reconnaissance Office and the US Space Force.

Geosynchronous Synthetic Aperture Radar (GEO SAR) systems represent a promising frontier in Earth observation technology, offering continuous monitoring of specified regions with exceptionally short ...

Enhanced maneuverability enabling precise adjustments within geosynchronous orbit to meet mission demands. Affordable small satellite GEO solutions with shorter lead times compared to traditional ...

A Long March 3B lifts off from Xichang, sending Shijian-25 on its way to orbit, Jan. 6, 2025. Credit: Ourspace HELSINKI — China’s experimental Shijian-21 and Shijian-25 satellites have separated in ...

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 ...