Horizon
This long-running science series explores big questions and surprising discoveries, unpacking mysteries across topics from astronomy to psychology and beyond. Guided by expert voices, it aims to make complex ideas clear while taking viewers into unfamiliar worlds and fresh ways of thinking.
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Season 57
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1
E1
Addicted to Painkillers? Britain's Opioid Crisis
Dr Michael Mosley immerses himself on the frontline of our prescription painkiller habit. In America, it is an epidemic. Now, new evidence raises concern about the UK's use of prescription opioids.
Jan 16, 2020 -
2
E2
Chris Packham: 7.7 Billion People And Counting
Naturalist Chris Packham investigates the impact a growing human population is having on the planet, asking whether the earth can sustain predictions of ten billion people by 2050.
Jan 23, 2020 -
3
E3
Toxic Town: The Corby Poisonings
The unknown story of the worst child-poisoning case since thalidomide, featuring a landmark legal battle by a group of mothers determined to uncover the truth.
Mar 23, 2020 -
4
E4
The Restaurant that Burns Off Calories
Fred Sirieix and Zoe Williams open a restaurant with a difference, where every calorie eaten must be burned off by a secret gym team.
Apr 20, 2020 -
5
E5
Hubble: The Wonders of Space Revealed
To celebrate the 30th anniversary of its launch, this film tells the remarkable story of how Hubble revealed the awe and wonder of our universe and how a team of daring astronauts risked their lives to keep it working.
Apr 24, 2020 -
6
E6
The Great British Intelligence Test
Dr Hannah Fry and Michael Mosley put the public to the test, pitting young and old, males and females and tech lovers and readers against each other in a battle of wits.
May 4, 2020 -
7
E7
What's the Matter with Tony Slattery
Comedian Tony Slattery meets experts to explore his psychological problems, finding out if he is definitely bipolar, confronting addiction and opening up about a childhood trauma.
May 21, 2020 -
8
E8
Pluto: Back From the Dead
The incredible story of how Pluto has been propelled from an unremarkable ball of ice on the edge of the solar system to a world of unimaginable complexity - where some form of alien life might exist.
Jul 6, 2020
