Battle Plan Under Fire Can the U.S. military's high-tech weaponry prevail against insurgents?
Crash of Flight 111 One of the most exhaustive investigations in aviation history reveals telling clues to the cause of a disaster off Nova Scotia.
Descent Into the Ice A team of "glacionauts" ventures into a labyrinth of unexplored and hazardous glacier caves on France's Mt. Blanc.
Dogs and More Dogs How and why did man's best friend evolve from wolves, and why are dogs so remarkably diverse today?
Great Escape Experts dig into World War II's most daring and technically ingenious prison break.
Hunt for the Supertwister Tornado-chasing scientists with an eye to better forecasting risk their lives to plumb the secrets of nature's most terrifying killer.
MARS Dead or Alive NASA gambles on two rovers sent to determine if the red planet ever had conditions suitable for life.
Most Dangerous Woman in America, The Examine the complex case of Typhoid Mary, a cook who was quarantined for life against her will in the early 1900s.
Origins Journey back to the beginning of everything: the universe, Earth, and life itself.
Secrets of the Crocodile Caves Rare lemurs and crocodiles with bizarre cave-dwelling behavior draw scientists to a remote corner of Madagascar.
World in the Balance NOVA investigates forces that are radically changing populations in both rich and poor nations, and explores how to create a world that can sustain the human race.