Buzz Aldrin, the second person to walk on the moon, has weighed in on the debate over the first moon landing after conspiracy theorists used the 46th anniversary of the event to suggest it was faked. Professor Brian Cox, English physicist, and professor of particle physics in the School of Physics and Astronomy at the University of Manchester, was first to take on the landing deniers, writing on Twitter that anyone who believed the Apollo 11 landing didn't happen was a "colossal nob end".Aldrin weighed in shortly later with another brilliant tweet."@ProfBrianCox is a pretty smart guy. Also the Russians would have exposed by now if we didn't land. #Apollo11."Comedian Al Murray also got in on the act. "There is precisely not a lack of irrefutable proof. There's an irrefutable abundance of eeijts."To mark the anniversary of the landing, Aldrin tweeted pictures of his moon walk."I only took a few photos on the moon and this one was to show how the lunar dust was like talcum powder. #Apollo11." ..