Pascal Le Segretain/Getty
Elon Musk may be the world's richest rocket scientist.
With a fortune hovering around $20 billion, the 46-year-old CEO of Tesla and SpaceX and cofounder of OpenAI has said he won't be happy until we've escaped Earth and colonized Mars. Luckily, he has the mind and the money to make it happen.
A notorious workaholic, Musk doesn't spend cash on lavish vacations or expensive hobbies. Instead, the entrepreneur spends most of his time at the office or in factories, retreating to one of his four Los Angeles mansions at the end of the day.
Scroll through to find out what we know about how Musk, a father of five, amassed his fortune and how he spends it.
As a child growing up in South Africa, Musk taught himself to code. By the time he was 12, he sold the source code for his first video game for $500.OnInnovation/Flickr
Just before his 18th birthday, Musk moved to Canada and worked a series of hard labor jobs, including shoveling grain, cutting logs, and eventually cleaning out the boiler room in a lumber mill for $18 an hour — an impressive wage in 1989.OnInnovation/Flickr
Musk got a pay cut to $14 an hour when he started a summer internship alongside his brother, Kimbal, at the Bank of Nova Scotia after cold-calling — and impressing — a top executive there.Aaron P. Bernstein/Reuters
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