Elon Musk Elon Musk

The SpaceX Falcon 9 rocket and Dragon spacecraft break apart shortly after liftoff from the Cape Canaveral Air Force Station in Cape Canaveral, Fla., on June 28. SpaceX CEO Elon Musk said Monday the failure of a steel strut likely caused the rocket to explode. John Raoux/AP hide caption

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John Raoux/AP

Musk with the Tesla Model S in Fremont on Oct. 1, 2011. Stephen Lam/Reuters/Landov hide caption

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Stephen Lam/Reuters/Landov

A rendering of a Hyperloop pod. Courtesy of Elon Musk hide caption

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Courtesy of Elon Musk

A Closer Look At Elon Musk's Much-Hyped Hyperloop

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Elon Musk's "Hyperloop" vehicle. Elon Musk hide caption

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Elon Musk

After Much Hype, Elon Musk Unveils His High-Speed 'Hyperloop'

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