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Horizon: How Big Is the Universe?
E4 of 17
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As writer Bill Bryson once pointed out, the thing about space is that it’s very well named. There really is a lot of space in it.
It’s also unfathomably large, as this
tries to explain. Infinitely large in fact, yet (if you can get your head around the idea) still expanding, because space itself is getting bigger. Here, we meet some of the mega-brained cosmologists and astrophysicists who trade in such ideas and are effectively trying to map the entire universe.
I particularly liked the man who has set about photographing our local patch, the Milky Way. The full-colour image he has created, portraying an area 100,000 light years across, is quite something.
Cosmologists discuss their project to create a map of everything in existence, and reveal that their research has yielded some highly unexpected results, creating a picture stranger than anything they had imagined. Scientists also explain why the map suggests the universe may not be an all-encompassing entity - but merely the starting point for something much bigger.
Cast & Crew
Full Episode Guide
What's it like to battle with a dozen people talking inside your head?
This week’s Horizon looks at the lives of three people who have been diagnosed with conditions that feature hearing voices, paranoia and hallucinations
BBC may lose the right to make long-running science series Horizon
8 hair care myths untangled
The contradictions of drugs in sport
Jimmy Carr to host Horizon special on the science of laughter
To vape or not to vape: are E-cigarettes a miracle or a menace?
BBC science series Horizon is going to show us how to be immortal in 2016
6 things people often get wrong about OCD
How to choose the best diet for you...
British Documentary Awards 2014: Horizon: The Secret Life of the Cat
Alice Roberts: Boys' and girls' brains aren't so different
Six steps to happiness, fitness and weight loss