Here is the gravitational constastant, and is the mass of the earth. For a stable circular orbit, the centrifugal force, which is directed outward radially must balance the gravitational force, which ...

China’s military is rapidly building up space capabilities, including more than 970 recently deployed satellites that would ...

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).

Before communications satellites, such signals had to be relayed via earth-based relay towers which had to be placed in sight of one another. The original idea of geosynchronous communications ...

Speaking at the Advanced Maui Optical and Space Surveillance Technologies (AMOS) Conference in Maui, Hawaii, Lt. Gen. Philip ...

One such revelation has been the exploration of geosynchronous smallsats, like Boeing’s 702X small GEO satellites, the ...

United Airlines announced that it signed an agreement with Elon Musk's SpaceX to bring its Starlink internet service to its ...

Satellite pair launched on Thursday will allow for system to keep operating while older satellites are maintained and managed.

NASA wants to establish a permanent human presence on the moon, but right now, astronauts have to be in direct line of sight ...

A more realistic use for lasers is for deflecting incoming asteroids or as propulsion systems for spacecraft. In a new paper, ...

China on Thursday launched two new satellites of the BeiDou-3 Navigation Satellite System (BDS-3) from the Xichang Satellite ...

Lockheed Martin Corp. LMT recently announced that it clinched a contract worth $297 million from NASA to design and construct ...