| Length | 5.6 m. (18 ft., 4 in.) in orbit; 2.3 m. (7 ft., 4 in.) at splashdown |
| Base diameter | Adapter, 3.1 m. (10 ft.); spacecraft, 2.3 m. (7 ft., 6 in.) |
Apollo 11 Command Module, Columbia
13. Three inflated bags repositioned the spacecraft following splashdown. The astronauts watch pararescue-man shut hatch during recovery.
“That’s one small step for a man, one giant leap for mankind,” Neil A. Armstrong radioed Houston from Tranquility Base on the Moon. The first footprint had been left on the lunar surface. It was 10:56 P.M. (EDT) on July 20, 1969.
Neil Armstrong was Apollo 11’s commander, Michael Collins was command-module pilot, and Edwin “Buzz” Aldrin was the lunar-module pilot. Their journey began at 9:30 A.M. (EDT) when their Saturn 5 lifted off under 3.4 million kilograms (7.5 million pounds) of thrust.
The three-man crew made the 383,000-kilometer (238,000-mile) journey to the Moon in three days, traveling in command-module Columbia.
At 1:46 P.M. (EDT), on July 20, Armstrong and Aldrin separated the lunar module from the Columbia and began the descent to the lunar plain.
During the 2 hours and 47 minutes that the astronauts were out on the surface of the Moon, they collected samples, deployed instruments, took photographs, and explored Tranquility Base around the lunar module.
After completing their tasks on the Moon, the astronauts rendezvoused with Collins in the command module. Jettisoning the ascent stage, they began the three-day journey back to Earth.