If you find yourself in a debate questioning whether humankind first stepped on the Moon on 20 July 1969 the chances are that you are woefully underprepared. Most people take it as gospel that the US government, Nasa, the 12 astronauts in total who have walked on the Moon and the 400,000 people involved in the Apollo programme would have neither the will nor the way to fake one of humanity’s greatest ever achievements.But there are those who think the landings were a hoax. They claim the US government faked Apollo 11 and later missions either to deal a crucial blow to the USSR in the Space Race, or to boost Nasa funding or to divert attention away from the Vietnam war. The argument for any of these viewpoints rests on finding evidence that the landings were faked.And more often than not, people point out peculiarities in specific images or videos to deal the critical blow. If someone uses these oddities as evidence, what do you say? Here are the most common arguments that support this view, and why each of them is wrong.