Goldstone Deep Space Communications Complex
The complex includes the Pioneer Deep Space Station (aka DSS 11), which is a U.S. National Historic Landmark. The station is one of three satellite communication stations in the NASA Deep Space Network (DSN), whose mission is to provide the vital two-way communications link that tracks and controls interplanetary spacecraft and receives the images and scientific information they collect. The others are the Madrid Deep Space Communications Complex in Spain and the Canberra Deep Space Communication Complex in Australia. These three stations are located at separations of approximately 120° longitude so that as the Earth rotates a spacecraft will always be in sight of at least one station.
Goldstone Deep Space Communications Complex-2