Moon landing conspiracy theorists claim that the Apollo program and the moon landings were staged by the U.S. government, specifically NASA. The conspiracy theorists believe that NASA manufactured or tampered with evidence and convinced Neil Armstrong, Buzz Aldrin, and the other Apollo mission astronauts to lie to the public for their entire lives.
As far-fetched as that may sound to the average person — and there is no serious evidence in support of it, and much to contradict it — these conspiracists have been able to maintain broad public interest. In 2001, FOX broadcast a documentary called "Conspiracy Theory: Did We Land on the Moon?" that explored the claim that the U.S. faked the initial moon landing in order to win the "space race" to be the first country to the moon.
A handful of examples from conspiracy theorists on twitter after Neil Armstrong's death Saturday show that these ideas persist, even after high-definition photos taken by the LROC spacecraft have shown the lander modules, tracks left by the astronaut, and the Apollo flags still standing on the moon...
Neil Armstrong didn't go to the moon... But RIP
Neil Armstrong didn't go to the moon... But RIP-- Jack Marley
Damn, thought yall were just debating, never knew Neil Armstrong died , RIP. You still didn't walk on the moon tho, but RIP
Damn, thought yall were just debating, never knew Neil Armstrong died , RIP. You still didn't walk on the moon tho, but RIP-- Boi-1da
Lol Neil Armstrong didn't walk on the moon. Just a big conspiracy by Americans.
Lol Neil Armstrong didn't walk on the moon. Just a big conspiracy by Americans.-- Tory Rocha
RIP Neil Armstrong! You didn't really land on the moon, but it's all good. Your story is still apart of our history.
RIP Neil Armstrong! You didn't really land on the moon, but it's all good. Your story is still apart of our history.-- Mr. Ayy Shorrr
Though Neil Armstrong' first Moon landing was hoax they tried to fool everyone but he admitted it was fake, which requires a lot of guts.
Though Neil Armstrong' first Moon landing was hoax they tried to fool everyone but he admitted it was fake, which requires a lot of guts.-- Mr. B L U E
So yesterday was the 40th anniversary of Neil Armstrong landed onto the moon on a fake set in a movie studio #letsbehonest #conspiracy #hoax
So yesterday was the 40th anniversary of Neil Armstrong landed onto the moon on a fake set in a movie studio #letsbehonest #conspiracy #hoax-- TheRealThomasfy
There are many theories that moon landing conspiracists have been touting for decades to "prove" that the manned moon landings were shot on a studio set and that man has still never set foot on the moon. These are the main arguments for their cause:
The Flag Waves

There Aren't Any Stars

There's No Crater Under The Lander

The Crosshairs In The Photos Sometimes Appear To Be Behind Objects

The Shadows Are Inconsistent.


There are hundreds of other ideas conspiracists can give you for proving that the moon landing was faked: from "the pictures are too good to be true" (it was a really nice camera) to "why haven't we gone back?" (being first was that important).
If you're interested in reading more about what the theories are and how they have been debunked, try the super-comprehensive non-profit website Clavius Moon Base.