Dan O'Neil

In 1695, Isaac Newton already renowned as the greatest mind of his agemade a surprising career change. He left quiet Cambridge, where he had lived for 30 years and made his earth-shattering discoveries, and moved to London to take up the post of Warden of His Majestys Mint. Newton was preceded to the city by a genius of another kind, the budding criminal William Chaloner.

For more than 50 years, the world's top scientists searched for the "missing" planet Vulcan, whose existence was mandated by Isaac Newton's theories of gravity. Countless hours were spent on the hunt for the elusive orb, and some of the era's most skilled astronomers even claimed to have found it. There was just one problem: It was never there.