Elon Musk, CEO of electric car maker Tesla and space exploration firm SpaceX, has plans for a futuristic transportation system known as the Hyperloop. Here's a look at the South Africa native's wide-ranging business successes to date.
Musk scored his next big hit with PayPal, the now-ubiquitous online payment company he co-founded and led. PayPal went public in 2002 and was acquired by eBay (EBAY) later that year for $1.5 billion.
NEXT: Life on Mars?