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 ...

Nature Physics - Relativistic electrons in the outer Van Allen belt wreak havoc with satellites in geosynchronous orbit, but how they reach such high energies has been unclear. New data identify ...

Northrop Grumman has written a new line in the history books, the company's Mission Extension Vehicle 1 (MEV-1) executing the first undocking of two commercial satellites in geosynchronous earth ...

Maj. Gen. Stephen Purdy, the Space Force’s top acquisition official, on April 29 signed off on a new acquisition plan that ...

USA 324, which was launched in January 2022, and other GSSAP satellites can track and observe objects in geosynchronous orbit more than 22,000 miles above the equator, NASA said. The U.S. Space ...