What it does: X, formerly known as Google X, is Alphabet's factory for moonshots — which is to say, ambitious projects that take years to actualize. A number of Alphabet's "Other Bets" got their start at X, including Waymo, Wing, Loon, Verily, Makani, and Chronicle.
Meet the CEO: Eric "Astro" Teller has been Alphabet's Captain of Moonshots since 2010. Prior to that, Teller had founded five companies, the last of which, BodyMedia, was acquired by Jawbone for $100 million.
"[He thinks] farther ahead in research and business chess than anyone I've ever seen," Teller's friend and former classmate at Stanford once told Business Insider.
As for why he enjoys taking on the seemingly impossible, Teller said at the South by Southwest talk back in 2013: "When you try to do something radically hard, you approach the problem differently than when you try to make something incrementally better. When you attack a problem as though it were solvable, even though you don't know how to solve it, you will be shocked with what you come up with. It's 100 times more worth it. It's never 100 times harder."