Mass.) WGBH (Television station : Boston

Reporting from the frontiers of science, follow researchers on the winding paths of uncertainty and the unknown. From the mysteries of astrophysics to the technologies that could rival or surpass the abilities of the human mind, the series reveals how far humans have come, how they've managed to get here, and the remarkable scientists who are transforming the world and the future.

This film explores Kennedy's childhood years as the privileged but sickly son of one of the wealthiest men in America, his early political career as a lackluster congressman, his successful run for the U.S. Senate, and the game-changing presidential campaign that made him the youngest elected president in U.S. history.

When World War I began in 1914, the air forces of the opposing nations consisted of handfuls of rickety biplanes. By the war's end, the blueprint of the modern fighter aircraft had emerged. To trace the story of this astonishingly rapid technological revolution, NOVA takes viewers inside The Vintage Aviator, a team of New Zealand-based aviation buffs dedicated to bringing back classic World War One fighters.

Dr. Tara Allmen provides the tools every woman needs to enter this phase of their lives triumphantly. Dr. Allmen and other women's health experts explain common symptoms, health risks, and therapeutic options. Also, women share their firsthand experiences, personal journeys, and successful strategies to effectively cope with perimenopause and menopause.

Almost a century ago, paleontologists found the first hints of a monster even bigger than Tyrannosaurus Rex, perhaps the largest predator ever to walk the Earth: fossil bones from a dinosaur dubbed Spinosaurus. Bringing together experts in paleontology, geology, climatology, and paleobotany, this NOVA/National Geographic special brings to life the lost world over which Spinosaurus reigned more than 65 million years ago.

Tennison relocates to the Greater Manchester Police for a stint as a community relations officer at local schools. Later she is assigned the shooting case of a young drug dealer, and she pegs a corrupt local drug lord as the killer. Somehow he stays one step ahead of her investigation. Is he getting inside information?

Einstein called it 'spooky action at a distance, ' but today quantum entanglement is poised to revolutionize technology. Physicists have become gradually convinced that quantum entanglement is real, but a few doubts remain. NOVA follows a groundbreaking experiment in the Canary Islands to use quasars at opposite ends of the universe to once and for all settle remaining questions.

On May 6, 1937, the Hindenburg, the world's largest airship, ignited in a giant fireball as it prepared to land at Lakehurst, New Jersey - a disaster immortalized by searing newsreel footage and Herbert Morrison's unforgettable 'Oh, the humanity!' commentary. The chain of events that ignited Hindenburg's hydrogen remains one of the biggest mysteries in aviation history.

The story of Ronald Reagan's life, with comments by contemporaries and historians.

On March 4, 1865, at the United States Capitol, a crowd of fifty thousand listened as President Lincoln delivered his classic second inaugural address, urging charity and forgiveness to a nation in the final throes of war. Just two months later, a train, nine cars long and draped in black bunting, pulled slowly out of a station in Washington, D.C. Dignitaries and government officials crowded the first eight cars. In the ninth rode the body of Abraham...