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Horizon

BBC TwoDocumentary · 62 seasons

7.5TMDB

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Season 46

Questions

Where can I watch Horizon?

Horizon streams on PBS.

How many episodes are in Season 46?

Season 46 has 18 episodes.

Episode roomHorizon S46 E15

Horizon · Season 46 · Episode 15

Who's Afraid of a Big Black Hole?

Tuesday, December 22 · 60 min

Black holes are one of the most destructive forces in the universe, capable of tearing a planet apart and swallowing an entire star. Yet scientists now believe they could hold the key to answering the ultimate question - what was there before the Big Bang? The trouble is that researching them is next to impossible. Black holes are by definition invisible and there's no scientific theory able to explain them. Despite these obvious obstacles, Horizon meets the astronomers attempting to image a black hole for the very first time and the theoretical physicists getting ever closer to unlocking their mysteries. It's a story that takes us into the heart of a black hole and to the very edge of what we think we know about the universe.

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