Tracking and Data Relay Satellites - NASA NASA's Tracking and Data Relay Satellites, or TDRS, provide communications services to many NASA spacecraft. These satellites form a global constellation capable of relaying data between spacecraft and ground stations on Earth.

Salute to the resilient TDRS Constellation and DSN for continual service in providing GPS acquisition during the mission. #artemisII #orioncrew #orionmodule #orionspacecraft

Cant even imagine traveling at 24k mph... #artemisII #orioncrew #orionmodule #orionspacecraft