US space agency Nasa has rejected reality star Kim Kardashian's claim that the 1969 space mission to land the first man on the Moon was faked.

Yes, we've been to the Moon before... 6 times! Nasa acting administrator Sean Duffy wrote on social media.

Kardashian made the comments on the latest episode of her long-running TV series The Kardashians, telling co-star Sarah Paulson she thought the Moon landing didn't happen.

Despite being consistently debunked, conspiracy theories regarding whether humans actually reached the Moon have persisted for more than 50 years, particularly with the rise of social media.

In the episode, Kardashian can be seen showing Paulson an interview with astronaut Buzz Aldrin, who along with Neil Armstrong took the first steps on the lunar surface during the Apollo 11 mission.

I'm sending you a million articles with both Buzz Aldrin and the other one, Kardashian says, before reading a quote allegedly from Aldrin responding to a question about the scariest moment of the expedition.

Moments later, the reality star is seen telling a producer I center conspiracies all the time, adding that she believes the Moon landing was fake.

Following the broadcast, Duffy tagged Kardashian in a post on X, rebuffing her comments, and promoted Nasa's current moon exploration program Artemis, which is going back under the leadership of Donald Trump.

Duffy later invited Kardashian to the Kennedy Space Center for the launch of the Artemis mission to the moon.

For decades, scientists and experts have rebutted conspiracy theories claiming the Apollo 11 mission was a hoax.

Every single argument claiming that Nasa faked the Moon landings has been discredited, according to the Institute of Physics.