AC

Elon Musk just proved that his commercial rocket venture could reach the International Space Station. Now, he wants to show well-heeled motorists on Earth how to navigate without gasoline. The California entrepreneur who heads companies at opposite ends of the state is hardly a household name. But he's emerging with a higher profile with the success of his cutting-edge, high-risk, ventures. The back-to-back successes began last month when SpaceX — the Southern California rocket company where Musk is founder, CEO and "chief designer" — made its Dragon the first commercial spacecraft to dock at the International Space Station. Then last Friday, Tesla Motors— the electric car company where Musk is co-founder and CEO — held a splashy ceremony at its cavernous factory here southeast of San Francisco to deliver the first of its new Model S electric luxury sedans. The four-door is rated by the government at up to 265 miles per charge for the costliest model, about three times more...