After they re-entered the LM, the hatch was closed and sealed. While preparing for liftoff, Armstrong and Aldrin discovered that, in their bulky space suits, they had broken the ignition switch for the ascent engine; using part of a pen, they pushed in the circuit breaker to start the launch sequence. The "Eagle" then continued to its rendezvous in lunar orbit, where it docked with "Columbia", the command and service module. The three astronauts returned to Earth and splashed down in the Pacific Ocean, to be picked up by the .