In a Youtube video titled “Liar Liar Pants on WIRES”, it is claimed that the low gravity environment in space – which causes astronauts to float – is faked.
The nutty suspicion is built around the idea that astronauts are actually using wires to trick people, much like how a magician or stage production would create the illusion of flying.
In the video, which analyses various clips from space made by NASA, the Youtuber claims that one astronaut does a backflip “without kicking off the floor”.
“He’s not kicking off anything to initiate the flip”, the video-maker claims in a caption.
Although the video was made back in March, it has recently exploded on the conspiracy pages of Reddit.
Believers have left a flurry of comments supporting the bizarre theory.
A Reddit user said: “If true, that’s wild.
“I did see that guy in the USMC shirt grab what appeared to be a hidden wire or cable behind the guy doing the flip next to him.
“Seems like they’re doing a David Copperfield routine combined with video compositing.”
“Are they using augmented reality double video layering?” another person questioned.
“There were a ton of these videos on YouTube but they were mostly all removed to protect us from the truth,” a third conspiracy theorist claimed.
However, a skeptic poured cold water on the theory and claimed there was no way the thousands of people working for the world’s space agencies could keep a lid on the same secret.
They wrote: “You realise that ~15 countries participate in the ISS.
“I really don’t see how the US and Russia are going to cooperate with a lie like this.
“And all of the companies and countries that send resupply missions to the ISS. I suppose all of them are lying too. And for what reason? Money?
“NASA doesn’t have a big budget compared to how much we spend on defence.
“Also, not a single whistleblower since the program’s inception.
“When it involves thousands of people and multiple countries.”