Moon landing conspiracy theories
This belief is considered by the scientific community and historians to be irrational. But on the internet, the debate can occur since it is easy for anyone to publish their ideas.  There are subcultures within the USA and cultures around the world that believe that the Moon landings were faked. This view is claimed to have been taught in Cuban schools and wherever else Cuban teachers are sent (Nicaragua, Angola). It is also shared by the Taliban and by the International Society for Krishna Consciousness (ISKCON).