Nancy Porter

PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and technology, and highlights the people involved in scientific pursuits.

TV's most-watched history series brings to life the compelling stories from our past that inform our understanding of the world today.

Louisa May Alcott, author of "Little Women," leads a literary double life, writing under the pseudonym A.M. Barnard, an identity that remains until the 1940s.

On August 8, 1908, at a racetrack outside Paris, Wilbur Wright executed what was, for him, a routine flight: a smooth take-off banking into a couple of tight circles, ending in a perfect landing. The flight took less than two minutes, but it left spectators awestruck. While the combined talents of Wilbur and Orville Wright had produced the first plane capable of controlled flight , their distrust of others had almost cost them the credit for their invention. Now, having proved to the public that they had mastered the sky, the reserved brothers from the small town of Dayton, Ohio, became world celebrities.

Story of Mary Mallon. Typhoid fever carrier