Monday was the 46th anniversary of the first lunar landing, yet a small fringe still believes the whole thing was a hoax.
According to the conspiracy theory, Neil Armstrong and Buzz Aldrin were on a soundstage instead of the moon. Some even claim that famed filmmaker Stanley Kubrick, who made "2001: A Space Odyssey" the previous year, directed the hoax.
On Monday, British physicist Brian Cox, professor of particle physics at the University of Manchester, had a blunt message for the conspiracy theorists:
He also wrote that he has always spelled "nob end" without the k.
The tweet got a response from Aldrin, who added:
In 2002, Aldrin -- then 72 years old -- famously punched a Bible-toting conspiracy theorist in the face. The man had followed Aldrin around, telling him to "repent" to "get to heaven" and called the astronaut "a coward, and a liar and a thief."
California prosecutors declined to press charges.
Also on Monday, Aldrin shared his reminiscences of the landing on social media:
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