This decision follows an anomaly where sparks were seen coming off the rocket during its most recent mission. An investigation into the issue could take months, potentially delaying ULA's planned ...

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 ...

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).

Add Yahoo as a preferred source to see more of our stories on Google. Space startup LeoLabs operates six radar sites — including this one in Western Australia — that monitor objects in low Earth orbit ...

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 ...