Apollo 11 - Neil Armstrong
Neil Armstrong becomes the first man on the moon on July 20, 1969. NASA

On July 20, 1969, NASA astronaut Neil Armstrong became the first man on the moon. The milestone was broadcast around the world and NASA was to celebrate the Apollo 11 45th anniversary with a live stream of the broadcast.

The Apollo 11 broadcast features Armstrong's iconic, and misquoted, words, "That's one small step for a man, one giant leap for mankind." Armstrong served as the Apollo 11 commander while Michael Collins served as the command module pilot and Edwin "Buzz" Aldrin as the lunar module pilot. The trio launched from the Kennedy Space Center on Merritt Island, Florida, July 16, 1969, atop the Saturn V launch vehicle at 9:32 a.m. EDT, NASA noted. On July 19, 1969, the Apollo 11 astronauts entered lunar orbit and on July 20, 1969, Armstrong and Aldrin entered the lunar module, dubbed Eagle, while Collins remained in the command module Columbia.

Armstrong manually piloted Eagle and landed in the Sea of Tranquility with Armstrong telling Mission Control, "Houston, Tranquility Base here. The Eagle has landed." At 10:56 p.m. EDT, Armstrong became the first man on the moon. Aldrin joined Armstrong shortly after and the duo spent slightly more than 21 hours on the moon. As they departed, the astronauts left behind the U.S. flag seen in photos, a patch honoring Virgil Ivan "Gus" Grissom, Edward White and Roger Chaffee, the Apollo 1 astronauts killed in a cabin fire Jan. 27, 1967, a gold olive branch and a commemorative plaque.

On Twitter, Aldrin said he is visiting Collins at the Kennedy Space Center, Armstrong died Aug. 25, 2012. As part of the 45th anniversary celebration, Aldrin issued a public call for videos about Apollo 11 and there is a dedicated YouTube channel for the event. Celebrities, scientific leaders and politicians also contributed videos remembering Apollo 11.

The NASA live stream of the Apollo 11 broadcast from 1969 begins at 10:39 p.m. EDT and can be viewed below. The broadcast will also air from Times Square at 4:18 p.m. EDT. You can view Apollo 11 photos here.

Broadcast live streaming video on Ustream