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

Watching the #Artemis press conference. Every question has a tone of "but what if this goes wrong?" It's like everyone knows how crappy everything has been over the last year or so, and is afraid that something will go wrong with the splash down. Safe travels #OrionCrew please come back safely.