Retrace Einstein's thought experiments as NOVA reveals the simple but powerful ideas that reshaped our understanding of gravity, illuminating the theory of general relativity, and Einstein₂s brilliance, as never before.

Bram Stoker penned his gothic horror Dracula and popularized the vampire myth, but evidence now suggests those myths originating in England, not Eastern Europe. Oxford professor John Blair follows clues that offer insight into the formation of the myths. The cases hint at a belief that the dead could rise and bring fear to the living, that predates Eastern European lore and forcing a reexamination of the modern vampire legend.

A celebration of the Hubble Space Telescope's 25 years orbiting the planet. The story of one of the most remarkable advances in modern technology, as told by the people who designed, built, launched, operated and repaired the legendary observatory.

As the Ebola epidemic threatens to spiral out of control, NOVA reports from the hot zone, where courageous medical teams struggle to cope with a flood of victims, to labs where scientists are racing to test vaccines and find a cure. Surviving Ebola includes chilling firsthand interviews of what it's like to catch and survive this terrible affliction.

"Newton's Three Laws of Motion are at work in virtually every Disney theme park ride and attraction. The Walt Disney Imagineers demonstrate how they use Newton's Three Laws to create some of the most exciting ride experiences possible. From the thrilling rockets of California Adventure's Golden Zephyr to the wild twists of California Screamin', students will learn to define acceleration, friction and motion. Best of all, they'll be able to see first-hand...

Get ready for exciting up-to-the-minute, high-definition video of the latest discoveries in the world of science. Whether it be the latest advances in technology or medical research, this video brings it to children courtesy of the National Science Foundation. Young viewers will be inspired, empowered and challenged.

Across the planet, animals are joining forces to hunt, stay alive, build homes, keep warm, solve complex problems, or complete amazing feats. Partnerships were once thought rare in the animal kingdom, and it's not just animals of the same species teaming up; often completely unrelated species become unlikely collaborators. By teaming up, animals can achieve incredible things, proving that animals are better when they're together.

What powers some of the brightest attractions at Disney's theme parks? Electricity! From lighting the half million bulbs in Magic Kingdom's Spectromagic parade to transmitting electricity through water for the Finding Nemo Submarine Voyage, Disney Imagineers show students how electricity brings some of their favorite rides to life.

Get to know the planets, moons, asteroids, comets, exoplanets, and more as a distinguished professor reveals the secrets of the solar system.

Travel back through history, over 27,000 years into the past, when Arctic glaciers reached as far south as London and people faced a daily struggle not just to survive as individuals, families or groups, but to avoid the ultimate extinction of the species. A key moment in the course of history saw the two branches of humankind, the Neanderthals and the Cro-Magnons, face off against the backdrop of perilous cold, harsh conditions, and massive predators....