Search results

Is there an Edge to the Universe

2011 Science

It's a mystery mankind has struggled to solve since the beginning of history - is space infinite or might there be great cosmic border where everything ends? Groundbreaking cosmology and state of the art space telescopes, now suggest the Universe has a finite size and a unique shape. If this is true, there must be an edge to the Universe, and ... beyond that edge, there could exist a world beyond our wildest dreams. Show More

Series: Through the Wormhole

Is There a Shadow Universe

2014 Science

When we look up into the sky it appears we live in a universe that is filled with light. But scientists are now certain there is far more matter in the dark portions of our universe that we can’t see or touch. There’s something hiding in the shadows. Cosmologists agree that 'dark matter' has helped shape our Universe, but now they need to fig ...ure out what dark matter is. What’s going on in this hidden world? Could it have formed its own dark stars, planets, and even life forms? Could this Shadow Universe threaten our world of light? Show More

Series: Through the Wormhole Season 5

Endless Forms Most Beautiful

2013 Nature

Brian asks how, from a lifeless cosmos, it is possible that a planet can produce the more than eight million species we know of.

Series: Wonders of Life

To Infinity and Beyond

2010 Science

By our third year, most of us will have learned to count. Once we know how, it seems as if there would be nothing to stop us counting forever. But, while infinity might seem like an perfectly innocent idea, keep counting and you enter a paradoxical world where nothing is as it seems. Mathematicians have discovered there are infinitely many in ...finities, each one infinitely bigger than the last. And if the universe goes on forever, the consequences are even more bizarre. In an infinite universe, there are infinitely many copies of the Earth and infinitely many copies of you. Older than time, bigger than the universe and stranger than fiction. This is the story of infinity. Show More

Documentary AreaSimply the best Documentaries

Last Watched