Apollo CSM with LM The Apollo 11 moon landing required two spacecraft The lunar module (LM) and command service module (CSM). Once in lunar orbit the two would separate so the LM could land while the CSM waited in orbit. After launching from the lunar surface the LMs ascent stage would rendezvous and dock with the waiting CSM then the astronauts would transfer back into the main spacecraft and head home. It sounds nearly impossible but thats the way it was July 20 1969. *This model includes a golden plaque to commemorate the 50th anniversary of Apollo 11