Apollo 11 attained the national goal, set by President Kennedy in 1961, of landing men on the Moon and returning them safely to Earth within the 1960s. The mission lifted off precisely on time from Kennedy Space Center at 9:32 a.m. EDT, July 16, on a Saturn V. The lunar module touched down in the Moon's Sea of Tranquility at 4:18 p.m. EST, July 20. Commander Neil Armstrong stepped onto the lunar surface at 10:56 p.m., followed by lunar-module pilot Buzz Aldrin. Astronaut Michael Collins, the command module pilot, orbited above, conducting scientific experiments and taking photographs. Their activities were viewed live around the world by the largest television audience in history.