Conspiracy theorists have challenged NASA's 1969 Moon landing story after claiming that Neil Armstrong's iconic imprint does not match the sole of his lunar boots.
On July 20, 1969, Armstrong took a small step for the man and firmly planted his feet in the dusty gray surface of the Moon.
An iconic photograph of the very first steps on the Moon has been captured forever by fellow astronaut Buzz Aldrin and the footprints will remain on the moon without wind for millions of years.
The monumental success of Apollo 11 marked a new era in human exploration, but critics around the world accused NASA of improper play.
The conspiracists have now claimed a photograph of Neil Armstrong's space suit taken in 2016, is the last necessary test to deny NASA's moon landing.
The photograph taken by the astronomer Phil Plait in the Smithsonian National Air and Space Museum shows Mr Armstrong's historical space suit from the Apollo 11 mission.
The conspiracists with the aquiline eyes hastened to point out that the soles on the boots of the space suit were flat and smooth without any furrow.
The imprint left on the Moon, however, shows a 'imprint of sole with thick perpendicular steps.
The YouTube conspiracy channel ParaBreakdown said: "The bottom of these boots does not match the famous print left on the surface of the Moon.
When the two astronauts explored the surface of the Moon and collected rock samples for transportation to Earth, Mr. Aldrin documented his time on the lunar globe on the camera.
As he hopped in the low-gravity environment, the astronaut took several pictures of his footprints.
The second piece of the puzzle that unmasks the conspiracy claim is the equipment that both astronauts wore on the Moon.
A break in the astronauts' space suits shows that they wore a sort of protective overshoes over their boots when they got out on the moon.
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These shoe covers are much thicker and larger and have pronounced steps like those in the imprint photo.
A single photograph of Mr. Armstrong's feet on the Moon shows him wearing these exact overcoats on his space suit.
A plaque from the Texas Border Frontiers, next to the piece of equipment, reads: "Overshoe, Lunar – Left, Training.
"This overshoe has bypassed the normal boot area of the space suit version used on the Moon, called A7LB Space Suit.
"The shoe offers extra protection from tears, tears and dust to the basic space suit.
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"These overshoes have left their distinctive footprints, which are still on the moon until today."
After the success of the Apollo 11 mission, NASA astronauts set foot on the moon another six times.
Apollo 17 was the last mission linked to the Moon, which touched the lunar globe in 1972.
Mr Armstrong died on 25 August 2012, at the age of 82.