(This program is no longer available for online streaming.) Revisit "The Great Math Mystery," fresh from the archives and just nominated for an Emmy Award. Join NOVA on a mathematical mystery tour—a ...

Last night at 2:17 AM, every child from Mrs. Gandy's class went missing.

In 1637, Pierre de Fermat scribbled a note on a textbook margin that would baffle mathematicians for more than three centuries. And that’s all he wrote. Fermat died before supplying the missing proof ...