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What Is Gravity Made Of?
3m 7s
A "cosmic fingerprint" reveals the universe’s beginning and gravity's microscopic secrets.
NOVA brings you stories from the frontlines of science and engineering, answering the big questions of today and tomorrow, from how our ancestors lived, to whether parallel universes exist, to how technology will transform our lives. Visit the official website to watch full-length documentaries, or explore our world through short-form video, on our digital publication NOVA Next.
Video description: Apollo astronauts and engineers tell the inside story of Apollo 8, the first manned mission to the moon. The U.S. space program suffered a bitter setback when Apollo 1 ended in a deadly fire during a pre-launch run-through. In disarray, and threatened by the prospect of a Soviet Union victory in the space race, NASA decided upon a radical and risky change of plan.
A "cosmic fingerprint" reveals the universe’s beginning and gravity's microscopic secrets.
Explore the social lives of some of the smartest animals on the planet. Airing April 23, 2014 at 9 pm on PBS
How do dogs, sharks, dolphins, or birds experience the world? Airing April 16, 2014 at 9 pm on PBS
Birds that craft tools and pick locks are rewriting the rules of animal intelligence. Airing April 9, 2014 at 9 pm on PBS
In recent years, an unusual spate of deadly shark attacks has gripped Australia, resulting in five deaths in ten months. At the same time, great white sharks have begun appearing in growing numbers off the beaches of Cape Cod, Massachusetts, not far from the waters where Steven Spielberg filmed the ultimate shark fright film, Jaws.
Can we return apex predators to their natural environments without endangering humans? Airing April 2, 2014 at 9 pm on PBS
Check out the new streaming service from Cascade PBS, which pairs your PBS favorites with an ever-growing selection of TV series and films from around the world. Enjoy dedicated mobile and TV apps.