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,
Discovery and exploration of the Solar System Earth was Yuri Gagarin, a Soviet cosmonaut who was launched in "Vostok 1" on April 12, 1961. The first human to walk on the surface of another Solar System body was Neil Armstrong, who stepped onto the Moon on July 21, 1969 during the "Apollo 11" mission; five more Moon landings occurred through 1972. The United States' reusable Space Shuttle flew 135 missions between 1981 and 2011. Two of the five shuttles were destroyed in accidents. The first orbital space station to host more than one crew was NASA's Skylab, which successfully held three crews from 1973 to 1974. True