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A screen stands during the memorial service for astronaut Neil Armstrong is held at the National Cathedral September 13, 2012 in Washington, DC. -
Christina Korp (from left), Apollo 11 astronaut Buzz Aldrin, Annie Glenn and astronaut and former U.S. Senator John Glenn (D-OH) attend the memorial service for astronaut Neil Armstrong at the National Cathedral September 13, 2012 in Washington, DC. -
Former Vice President Dan Quayle and his wife Marilyn Quayle attend the memorial service for astronaut Neil Armstrong. -
Christin Korp (from left), Apollo 11 astronaut Buzz Aldrin, Annie Glenn and astronaut and former U.S. Senator John Glenn (D-OH) visit before the memorial service for astronaut Neil Armstrong. -
NASA Administrator Charles Bolden (L) bows his head in prayer before the start of the memorial service for Apollo 11 astronaut Neil Armstrong. -
NASA Administrator Charles Bolden (L) and Apollo astronaut Eugene Cernan prepare for the memorial service for astronaut Neil Armstrong at the National Cathedral September 13, 2012 in Washington, DC. -
Astronaut and former U.S. Senator John Glenn (D-OH) (2nd R) shakes hands with Apollo 11 astronaut Michael Collins (R) as Annie Glenn talks (2nd L) nearby before the memorial service for astronaut Neil Armstrong. -
Apollo astronaut and the last man to walk on the Moon, Eugene Cernan, delivers remarks about his friend and Apollo 11 astronaut Neil Armstrong during a memorial ceremony for Armstrong. -
Christin Korp (from left), Apollo 11 astronaut Buzz Aldrin, Annie Glenn, astronaut and former U.S. Senator John Glenn (D-OH) and music artist Diana Krall attend the memorial service for astronaut Neil Armstrong. -
NASA Administrator Charles Bolden (L) and Apollo astronaut Eugene Cernan (C) prepare for the memorial service for astronaut Neil Armstrong at the National Cathedral. -
Apollo 11 Astronaut Buzz Aldrin, Annie Glenn and astronaut and former U.S. Senator John Glenn (D-OH) visit before the memorial service for astronaut Neil Armstrong. -
Apollo 11 astronaut Michael Collins participates in the memorial service for astronaut Neil Armstrong at the National Cathedral September 13, 2012 in Washington, DC. -
(L-R) Apollo 11 astronaut Buzz Aldrin, Annie Glenn, Sen. John Glenn, and singer Diana Krall attend a memorial service for astronaut Neil Armstrong at the National Cathedral. -
Apollo 11 astronauts Michael Collins (R) and Buzz Aldrin (L) talk before the memorial service for astronaut Neil Armstrong.