Description: The bizarre orbital patterns of Uranus had for years been an nsolved astronomical puzzle. But when English mathematician John Crouch Adams came across them in 1841, he discovered that there was one very important piece missing: The gravitational pull of another planet-a planet no one had ever seen before. If Adams was able to see in the sky what he was able to deduce on paper, he would not only have discovered a new planet, but also a revolutionary ability to gain knowledge of worlds we cannot see through the power of mathematics. Unfortunately for him, he had a rival. The French astronomer Urbain Le Verrier calculated the planet's position shortly after Adams-and the international race to spot Neptune began.

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