Most of us know by now that the Earth is unquestionably round, but 'Flat Earthers' are very much committed to their mission of proving otherwise.
And one man's selfie taken from the very top of Mount Everest has seemingly destroyed the dreams of Flat Earthers once and for all.
While most of us accept the science of the Earth being round, one man got so upset by Flat Earthers that he decided he was going to scale the world's tallest peak just to prove them wrong.
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The selfie was posted to Reddit with the joking caption: "Checkmate flat Earth society."
Although there's already a lot of evidence including multiple photographs from space, this picture clearly shows the curvature of the Earth behind this seriously determined climber.
And as you can imagine, Reddit users went wild for the post.
One viewer revealed: "I climbed Kilimanjaro a few years ago, which is not nearly as tall as Everest, but the curvature of the earth was definitely visible from the summit, but nothing like this.
"I'm guessing that this has something to do with the camera lens and atmosphere affecting the image."
A second speculated: "I believe the flat earthers are trolling us all. Laughing all the way to their chat rooms and bulletin boards [sic]."
"I maintain that only like six people believe in a flat Earth," agreed a third user. "Everyone else is just trolling each other."
"I'm all for a good conspiracy theory but there are some, including the flat earth, that are just too much," added a fourth.
Other users pointed out that the curvature of the earth likely looks more pronounced in this image because of the use of a fish eye lens - but this doesn't change it being a fact.
Another user questioned why the top of Everest looks like a 'garbage dump' and this prompted someone to explain that everyone who scales the mountain leaves a flag.
It was also revealed that there is a lot of rubbish on the mountain because of the extreme conditions at the top.
"A lot of Everest is littered with garbage," explained a third Redditor. "The moment you pass a certain point the clock starts ticking and you literally begin dying. Every moment is planned out and any effort not spent reaching the summit or getting down will kill you.
"Bodies of former mountaineers have become altitude markers because anyone that would try to retrieve the bodies would 100 percent just die as well."
But while the litter obviously isn't ideal, it didn't stop a fourth Redditor from joking that this selfie makes the climber look like he's 'riding a piñata in space.'
Emma Guinness