Remembering an American Hero, Neil Armstrong

Astronaut Neil Armstrong (2012 photo)

U.S. astronaut Neil Armstrong (C) gives a thumbs-up after receiving the Congressional Gold Medal at the U.S. Capitol in Washington, November 16, 2011.

Neil Armstrong, commander of Apollo 11 and the first man on the moon, laughs during testimony before a House Science, Space and Technology committee hearing in Washington, September 22, 2011.

Apollo 11 astronauts Neil Armstrong, Michael Collins (L) and Buzz Aldrin (R) stand during a recognition ceremony at the U.S House of Representatives Committee on Science and Technology tribute to the Apollo 11 astronauts at the Cannon House Office Buildin

Apollo 11 astronaut, and the first man to walk the moon, Neil Armstrong, left, holds the Langley Gold Medal after it was presented to him by Vice President Al Gore at a ceremony at the Smithsonian Air And Space Museum in Washington, July 20, 1999.

Apollo 11 crew of U.S. astronauts Neil Armstrong, (L) who was the mission commander and the first man to step on the moon, Edwin "Buzz" Aldrin, (R), who was the lunar module pilot, and Michael Collins, (C), May 1969 (courtesy NASA)

O Dia Mundial da luta contra a SIDA foi o primeiro dia da saúde global e foi celebrado pela primeira vez em 1988

Apollo XI Astronauts Neil Armstrong (L), Michael Collins (C), and Buzz Aldrin laugh with President Richard Nixon aboard the USS Hornet, courtesy Richard Nixon Foundation, July 24, 1969.

Neil Armstrong, U.S. civilian astronaut, became first man to walk on the moon as flight commander of Apollo 11 space mission, July 1969.

The Apollo 11 crew leaves Kennedy Space Center's Manned Spacecraft Operations Building during the pre-launch countdown in this July 16, 1969 NASA handout photo. Mission commander Neil Armstrong, command module pilot Michael Collins, and lunar module pilot

Undated image provided by NASA shows Neil Armstrong posing with a X-15.

** FILE ** In this July 20, 1969 file photo, Apollo 11 astronauts Neil Armstrong and Edwin E. "Buzz" Aldrin, the first men to land on the moon, plant the U.S. flag on the lunar surface. (NASA)

Apollo 11 astronauts trained on Earth to take individual photographs in succession in order to create a series of frames that could be assembled into panoramic images. This frame from Buzz Aldrin's panorama of the Apollo 11 landing site is the only good p

Astronaut Neil Armstrong, Apollo 11 Commander, inside the Lunar Module as it rests on the lunar surface after completion of his historic moonwalk, July 20, 1969.