Egypt invited billionaire Elon Musk to visit the country and see for himself that its famous pyramids were not built by extraterrestrials.
The SpaceX boss had tweeted what appeared to be support for conspiracy theorists who say aliens were involved in the colossal construction effort.
But the Egyptian Minister for International Cooperation does not want them to take the credit.
She says seeing the tombs of the pyramid builders would prove that.
Tombs discovered in the 1990s are definitive proof, experts say, that the magnificent structures were indeed built by the ancient Egyptians.
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The tech mogul tweeted on Friday, “The aliens built the obv pyramids,” which has been retweeted more than 84,000 times.
Egyptian Minister for International Cooperation Rania al-Mashat responded on Twitter, saying she follows and admires Mr Musk’s work.
But she urged him to further explore the evidence for the construction of the structures built for the pharaohs of Egypt.
Egyptian archaeologist Zahi Hawass also responded in a short video in Arabic, posted on social media, saying Mr Musk’s argument was a “total hallucination”.
“I found the tombs of the pyramid builders who tell everyone that the pyramid builders are Egyptians and they were not slaves,” EgyptToday said.
Mr Musk then tweeted a link to a BBC history site on the life of the pyramid builders, saying, “This BBC article provides a wise summary of how this was done. ”
There are over 100 surviving pyramids, but the most famous is the Great Pyramid of Giza in Egypt, measuring over 137 meters.
Most of them were built as tombs – a final resting place for Egyptian royalty.
Mr. Musk is known for his prolific and sometimes erratic tweets. He once told CNBC, “Twitter is a war zone. If someone is going to jump into the war zone, it’s like, ‘Okay, you’re in the arena. Let’s go! ‘ “