The keys to the cosmos have been lying around for us to find all along. Light, itself, holds so many of them, but we never realized they were there until we learned the basic rules of science.

The little known but heroic story of a guy from Iowa that can't really be told without going all the way back to the time long before the Earth was formed - to the origin of the elements in the hearts of stars. The tempestuous youth of the Earth effectively erased all traces of its beginnings. How did we ever learn its true age?