NOVA

Two aviation giants, Lockheed Martin and Boeing, compete to build the next-generation fighter jet, the Joint Strike Fighter, and win one of the largest contracts in military history.

NASA gambles on two rovers sent to determine if the red planet ever had conditions suitable for life.

Tornado-chasing scientists with an eye to better forecasting risk their lives to plumb the secrets of nature's most terrifying killer.

Two rovers roaming the surface of Mars find proof that it was once awash in water.

Driverless vehicles compete in a 130-mile race across the desert. NOVA follows engineering teams competing in the DARPA Grand Challenge as they deal with the glitches, system crashes, and tight deadlines that threaten to derail them at every turn.