"This is a small step for man and a giant leap for mankind," a famous phrase by the American astronaut Neil Arromstring, the first man to set foot on the moon´s surface.
A phrase that reduced the magnificence of what he saw and saw on the moon, through a unique mission followed in July 1969 by approximately 650 million people around the world.
What did he say?
Shortly after the launch of this inspirational phrase, Armstrong began to accurately describe the NASA Control Center in Houston, Texas, the body on which the moon appears, based on the detailed text of the Apollo 11 mission and all the voice communications NASA has digitized and retained.
"Yes, the surface is soft in the form of a powder that I can kick with my toe," according to Armstrong, "the surface of the moon is very fine, like sand, on my face and my shoes."
The astronaut did not find a problem in navigating the lunar system and immediately noticed his footprints.
"I only go in a fraction of a inch, but I can see the effects of my shoes on fine sand particles."
Although the moon has one-sixth of Earth´s gravity, the astronaut and his colleagues Paz Aldrin and Michael Collins said the movements on the moon were easier than simulations during ground training.
"There seems to be no difficulty in moving, as we thought (first)," said Armstrong.
Armstrong and his colleague Baaz Aldrin began to photograph the moon with Hesselblad cameras and collect samples. Armstrong said of the description of the moon: "It has its own glamorous beauty, like the US desert, but it is different and very beautiful."
Apollo 11 and its three pilots returned to Earth on 24 July in the South Pacific.
Armstrong, Paz Aldrin and Michael Collins won the Presidential Freedom Medal from President Richard Nixon.
