Works and plays well with others
Relays from Mars demonstrate international interplanetary networking
And on a related note:
ESA's Mars Express has relayed pictures from one of NASA's Mars rovers for the first time, as part of a set of interplanetary networking demonstrations.
The demonstrations pave the way for future Mars missions to draw on joint interplanetary networking capabilities. ESA and NASA planned these demonstrations as part of continuing efforts to co-operate in space exploration.
CCSDS: International Space Communications Standards Organization Surpasses 300th Mission
Every mission I've worked on since 1992 has followed CCSDS standards for spacecraft commands and telemetry to some extent (if they followed them to the full extent, my life would be a lot easier, but then I might be out of a job, too!).
Everything I need to know I learned through Googling.