Today marks the 44th anniversary of Apollo 11's historic flight.
Armstrong made that first step at 9:56pm Houston time, saying, "That's one small step for man; one giant leap for mankind."
The astronauts then carried out experiments before collecting samples and photographing the terrain.
The crew landed safely in the Pacific Ocean four days later.
This is the first moon landing anniversary since Armstrong's death. He died August 25, 2012, following reported complications resulting from cardiovascular procedures.
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