On July 16, 1969, Apollo 11 was launched by a Saturn V rocket from Kennedy Space Center in Merritt Island, Florida. Apollo 11 was the fifth manned mission of NASA's Apollo program and it was the spaceflight that landed the first humans on the Moon, Neil Armstrong and Buzz Aldrin, on July 20, 1969. Armstrong became the first to step onto the lunar surface on July 21, 1969.
The Apollo spacecraft had three parts: a Command Module (CM) with a cabin for the three astronauts, which was the only part which landed back on Earth; a Service Module (SM), which supported the Command Module with propulsion, electrical power, oxygen, and water; and a Lunar Module (LM) for landing on the Moon.