Add Yahoo as a preferred source to see more of our stories on Google. A robotic mechanic may soon be up and functional to repair satellites in orbit. In a significant milestone, the U.S. Naval ...

China has insisted that its constellation of satellites in geosynchronous orbit is a peaceful project. It is anything but. China is committed to competing with the United States for dominance in space ...

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 ...

For many college students, satellites are faint dots crossing the sky on clear nights. These objects are background details from science fiction to reality, like GPS, satellite radio, and WiFi. For ...

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).

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 ...

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 ...

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 ...

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 ...

When you think of satellites, you probably think of those big finned boxes bouncing cellular signals out in orbit. They're certainly not the kind of thing you would consider a "vehicle," but it is a ...