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Horizon

BBC Two Documentary Not rated yet

What it is

Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.

Episode highlights

Last episode

Artemis: To the Moon and Back

s2026e01 · 2026-04-15

Next episode

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Episode guide

18 this season · 2146 total
s2009e01 Why Are Thin People Not Fat? 2009-01-26 21:00

Why Are Thin People Not Fat?

s2009e01 · 2009-01-26 · 21:00

No episode summary is available.

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s2009e02 Cannabis: The Evil Weed? 2009-02-03 21:00

Cannabis: The Evil Weed?

s2009e02 · 2009-02-03 · 21:00

No episode summary is available.

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s2009e03 Why Do We Dream? 2009-02-10 21:00

Why Do We Dream?

s2009e03 · 2009-02-10 · 21:00

No episode summary is available.

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s2009e04 Can We Make a Star on Earth? 2009-02-17 21:00

Can We Make a Star on Earth?

s2009e04 · 2009-02-17 · 21:00

No episode summary is available.

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s2009e05 The Secret Life of Your Bodyclock 2009-02-24 21:00

The Secret Life of Your Bodyclock

s2009e05 · 2009-02-24 · 21:00

No episode summary is available.

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s2009e06 What's the Problem with Nudity? 2009-03-03 21:00

What's the Problem with Nudity?

s2009e06 · 2009-03-03 · 21:00

No episode summary is available.

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s2009e07 How to Survive a Disaster 2009-03-10 21:00

How to Survive a Disaster

s2009e07 · 2009-03-10 · 21:00

No episode summary is available.

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s2009e08 Who Do You Want Your Child to Be? 2009-03-17 21:00

Who Do You Want Your Child to Be?

s2009e08 · 2009-03-17 · 21:00

No episode summary is available.

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s2009e09 Why Can't We Predict Earthquakes? 2009-03-24 21:00

Why Can't We Predict Earthquakes?

s2009e09 · 2009-03-24 · 21:00

No episode summary is available.

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s2009e10 Alan and Marcus Go Forth and Multiply 2009-03-31 20:00

Alan and Marcus Go Forth and Multiply

s2009e10 · 2009-03-31 · 20:00

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s2009e11 How Violent Are You? 2009-05-12 20:00

How Violent Are You?

s2009e11 · 2009-05-12 · 20:00

No episode summary is available.

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s2009e12 Do I Drink Too Much? 2009-10-13 20:00

Do I Drink Too Much?

s2009e12 · 2009-10-13 · 20:00

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s2009e13 The Secret You 2009-10-20 20:00

The Secret You

s2009e13 · 2009-10-20 · 20:00

No episode summary is available.

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s2009e14 Fix Me 2009-10-27 21:00

Fix Me

s2009e14 · 2009-10-27 · 21:00

No episode summary is available.

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s2009e15 Who's Afraid of a Big Black Hole? 2009-11-03 21:00

Who's Afraid of a Big Black Hole?

s2009e15 · 2009-11-03 · 21:00

No episode summary is available.

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s2009e16 Why Do We Talk? 2009-11-10 21:00

Why Do We Talk?

s2009e16 · 2009-11-10 · 21:00

No episode summary is available.

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s2009e17 How Long is a Piece of String? 2009-11-17 21:00

How Long is a Piece of String?

s2009e17 · 2009-11-17 · 21:00

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s2009e18 How Many People Can Live on Planet Earth? 2009-12-09 21:00

How Many People Can Live on Planet Earth?

s2009e18 · 2009-12-09 · 21:00

Naturalist Sir David Attenborough investigates whether the world is heading for a population crisis. In his lengthy career, Sir David has watched the human population more than double from 2.5 billion in 1950 to nearly seven billion. He reflects on the profound effects of this rapid growth, both on humans and the environment. While much of the projected growth in human population is likely to come from the developing world, it is the lifestyle enjoyed by many in the West that has the most impact on the planet. Some experts claim that in the UK consumers use as much as two and a half times their fair share of Earth's resources. Sir David examines whether it is the duty of individuals to commit not only to smaller families, but to change the way they live for the sake of humanity and planet Earth.

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