Astrophysicist Mario Livio, along with a colorful cast of mathematicians, physicists, and engineers, follow math from Pythagoras to Einstein and beyond, all leading to the ultimate riddle: Is math an invention or a discovery? Humankind's clever trick, or the language of the universe? Join Nova for a mathematical mystery tour, a provocative exploration of math's astonishing power across the centuries.

Four times governor of Alabama, four times a candidate for president, George Wallace was a fierce defender of Southern pride. This documentary examines Wallace's life and career, featuring archival footage and interviews with contemporaries, historians and family members.