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Horizon

BBC TwoDocumentary · 62 seasons

7.5TMDB

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Season 61

Questions

Where can I watch Horizon?

Horizon streams on PBS.

How many episodes are in Season 61?

Season 61 has 4 episodes.

Episode roomHorizon S61 E3
Still 1 from Secrets of The Brain (1)

Horizon · Season 61 · Episode 3

Secrets of The Brain (1)

Monday, September 29 · 58 min

Theoretical physicist Professor Jim Al-Khalili goes on a journey through 600 million years of evolution to uncover how the human brain, the most complex structure known in the universe, came to exist. With some 100 billion neurons and over 100 trillion connections - more than all the stars in the Milky Way - the human brain is one of nature's greatest achievements. But how did something so incredibly sophisticated evolve from its simple beginnings?

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