Building such facilities off Earth could have a lot of benefits. Early projects are underway.

The LuGRE receiver acquired and tracked GPS and Galileo satellite signals in lunar orbit on Feb ... signals in the L1/E1 and L5/E5 frequency bands. The farthest signal detected came from the Galileo ...

According to China Central Television, the Tiandu-1, Tiandu-2 and Queqiao-2 satellites successfully tested communications from moon orbit to Earth. Credit: Space.com | footage courtesy ...

NASA launched the Lunar Trailblazer satellite to map water deposits on the moon, focusing on permanently shadowed craters near the poles. Weighing 440 ...