Egypt’s minister of international cooperation has extended an invitation to SpaceX CEO Elon Musk after a Musk post on Twitter that the pyramids were built by extraterrestrial beings.  Musk tweeted Saturday: “Aliens built the pyramids obv.” Aliens built the pyramids obv— Elon Musk (@elonmusk) A camel in front of the Pyramids at Giza, Egypt, July 13, 2013. (A. Arabasadi/VOA)Egypt Today reports on its website that famed Egyptian archaeologist Zahi Hawass also weighed in on the topic on social media, saying that Musk’s tweet was a “complete hallucination.” Hawass added that he had “found the tombs of the pyramids builders that tell everyone that the builders of the pyramids are Egyptians and they were not slaves.”  He said ancient Egypt’s pyramid building was “a national project of the whole nation.” Musk had an apparent change of mind and eventually provided a link on his Twitter account about the building of pyramids.  He tweeted: “This BBC article provides a sensible summary of how it was done.” 
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