Morehead Planetarium and Science Center Armstrong. Armstrong visited again only months before the 1969 launch of Apollo 11, spending a total of 20 days at Morehead over 11 training sessions, more than any other astronaut. Astronauts commented that the "large dome" was "highly realistic", calling the facility "superb". In all, the astronauts who trained at the planetarium were Buzz Aldrin, Joseph P. Allen, William Anders, Neil Armstrong, Charles Bassett, Alan Bean, Frank Borman, Vance D. Brand, John S. Bull, Scott Carpenter, Gerald P. Carr, Eugene Cernan, Roger B. Chaffee, Philip K. Chapman, Michael Collins, Pete Conrad, Gordon Cooper, Walter Cunningham, Charles Duke, Donn F. Eisele,
History of spaceflight the landing of Apollo 11. Neil Armstrong and Buzz Aldrin became the first men to set foot on the Moon. Six such successful landings were achieved through 1972, with one failure on Apollo 13. The N1 rocket suffered four catastrophic unmanned launch failures between 1969 and 1972, and the Soviet government officially discontinued its manned lunar program on June 24, 1974, when Valentin Glushko succeeded Korolyov as General Spacecraft Designer. Both nations went on to fly relatively small, non-permanent manned space laboratories Salyut and Skylab, using their Soyuz and Apollo craft as shuttles. The US launched only one Skylab, but