The Apollo spacecraft was made up of a Command and Service Module, and a Lunar Module. The Command Module was a space capsule. The Lunar Module was a lander. These spacecraft docked on the way to the Moon. Mercury and Gemini spaceships were very small and cramped, but the Apollo capsule was much bigger. Astronauts could move around and not have to stay in their seats. The Lunar Lander was also big on the inside. The only part of the Apollo spacecraft to come back to Earth was the capsule, the Lunar Module would crash on the moon.