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Mark Elliot Zuckerberg (/?z?k?rb??r?/; born May 14, 1984) is an American media magnate, internet entrepreneur, and philanthropist. He is known for co-founding Facebook, Inc. and serves as its chairman, chief executive officer, and controlling shareholder.
He also is a co-founder of the solar sail spacecraft development project Breakthrough Starshot and serves as one of its board members.
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