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,
Apollo 11 lunar sample display the United Nations that were to receive these displays. Each display included Moon dust from the Apollo 11 first manned lunar landing mission that were collected by Apollo 11 astronauts Neil Armstrong and Buzz Aldrin in 1969. The rice-sized particles were four small pieces of Moon soil weighing about 50 mg total and were enveloped in a clear acrylic button about as big as a United States half dollar coin. This acrylic button magnified the grains of lunar pebbles. The Apollo 11 lunar sample displays were given out as goodwill gifts by Nixon in 1970. Lunar dust soil from the