The Apollo command and service module — Columbia — in hand-formed metal.Handcrafted with the conical command module, cylindrical service module, engine bell and thruster quads that took three men to lunar orbit and back.Details Handcrafted metal construction Command and service module detail Main engine bell and reaction control thruster quads Hand-finished surfaces and panel detail Ready to display The spacecraftMichael Collins flew Columbia alone in lunar orbit while Armstrong and Aldrin were on the surface. For 48 minutes of each two-hour orbit he passed behind the Moon with no radio contact with anyone — the most isolated any human being has ever been.The command module is the only part of the 363-foot Saturn V stack that came home. It is now in the Smithsonian's National Air and Space Museum, its heat shield still scorched from re-entry.