Tesla, SolarCity and other on-the-ground ambitions like a giant battery factory aren’t enough for Musk, who hopes his SpaceX venture can ultimately carry humans to Mars.
Elon Musk reigns over an entrepreneurial landscape of epic proportions: With Tesla Motors, the CEO wants to wean us off fossil fuels with electric cars. With SolarCity, he envisions panels blooming on a million rooftops. And as the fortunes of these two firms soar, Musk is laying the groundwork for ...
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