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).

Artistic impression of European Data Relay Satellite (EDRS) system (not to scale). These satellites work in GEO and relay data to and from non-GEO satellites, spacecraft, and stations that aren’t ...

Ovzon 3 was built by Maxar using a Legion-class bus. At 1,500 kilograms, Ovzon’s first custom-built satellite is small compared to traditional geostationary communications satellites. Credit: ...

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 startup space company says it has successfully deployed and tested a kitchen-stove-sized satellite in geostationary orbit and begun delivering Internet service to Alaska. Earlier this month, the ...

On July 7, 2024, NOAA's GOES-U executed its final engine burn, placing the satellite in geostationary orbit 22,236 miles above Earth's equator. Upon reaching this milestone, GOES-U was renamed GOES-19 ...