Elon Musk Elon Musk

Artificial intelligence poses an existential risk to human civilization, Elon Musk (right) told the National Governors Association meeting Saturday in Providence, R.I. Stephan Savoia/AP hide caption

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Stephan Savoia/AP

Tesla and SpaceX CEO Elon Musk responds to a question by Nevada Republican Gov. Brian Sandoval during the third day of the National Governors Association's meeting on Saturday in Providence, R.I. Among other things, Musk warned governors that artificial intelligence poses a "fundamental risk to the existence of human civilization." Stephan Savoia/AP hide caption

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Stephan Savoia/AP

Emirati men check a Tesla vehicle during a ceremony in Dubai in February. The electric -vehicle maker recently announced the opening of a new Gulf headquarters in the United Arab Emirates. Karim Sahib/AFP/Getty Images hide caption

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Karim Sahib/AFP/Getty Images

Elon Musk has started a new company called Neuralink, in what's widely seen as a bid to add a symbiotic computer layer to the human brain. Susana Gonzalez/Bloomberg via Getty Images hide caption

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Susana Gonzalez/Bloomberg via Getty Images

SpaceX says its Falcon Heavy rocket, shown here in an artist's rendering, will be used in the mission to the moon. SpaceX hide caption

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SpaceX

SpaceX Announces Plans To Send Two Customers To The Moon

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SpaceX's Falcon 9 rocket sits on the launch pad Saturday at Kennedy Space Center in Florida. SpaceX scrubbed the Saturday launch due to a technical issue. The company is tried again — and succeeded — on Sunday. Bruce Weaver/AFP/Getty Images hide caption

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Bruce Weaver/AFP/Getty Images

Elon Musk, CEO and CTO of SpaceX, introduces the Dragon V2 spaceship at the company's headquarters in Hawthorne, Calif., in May 2014. Musk predicted during an interview at the Code Conference in Southern California on June 1 that people would be on Mars in 2025. Jae C. Hong/AP hide caption

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Jae C. Hong/AP

Tesla vehicles sit parked outside a new Tesla showroom and service center in Brooklyn, New York on July 5. The electric car company has come under increasing scrutiny following a crash of one of its electric cars while using the controversial Autopilot feature. Spencer Platt/Getty Images hide caption

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Spencer Platt/Getty Images

Tesla's Ambitions Run Into The Realities Of Making Cars

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About 14 percent of the Gigafactory in Nevada has been built so far. At 5.8 million square feet, it will be a building with one of the biggest footprints in the world. Tesla hide caption

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Tesla

A Rare Look Inside The 'Gigafactory' Tesla Hopes Will Revolutionize Energy Use

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Tesla Motors unveils the new lower-priced Model 3 sedan in Hawthorne, Calif., on Thursday. Justin Prichard/AP hide caption

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Justin Prichard/AP

A Tesla For The Masses? Orders For Model 3 Top 100K In First Hours

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A handout picture made available by SpaceX shows a Falcon 9 rocket landing upright at Cape Canaveral Air Force Station in Florida. SpaceX successfully returned a rocket to Earth following Monday's satellite launch after two earlier attempts failed. SpaceX/EPA/Landov hide caption

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SpaceX/EPA/Landov