Horizon Season 54 Episodes

Episode 1

Clean Eating: The Dirty Truth

Dr Giles Yeo investigates the latest diet craze and social media sensation - clean eating. Giles cooks with Ella Mills and sifts through the claims of the Hemsley sisters.

Episode 2

Hair Care Secrets

Annually, an estimated US$34 billion is spent on shampoos and conditioners globally - big business indeed. So it comes as no surprise that major cosmetics companies invest heavily in this industry as they want as large a slice of the hair care pie as possible. Along with that investment come some impressive claims about what is in that little bottle. Physicist Helen Czerski and a team of experts will demystify the world of hair and reveal the science behind the claims and bust some of the beauty myths consumers are led to believe, and sort the pseudoscience from the true science in this world of secret research.

Episode 3

ADHD and Me with Rory Bremner

Comedian and impressionist Rory Bremner is on a personal mission to uncover the science of ADHD (attention deficit hyperactivity disorder), a condition which he suspects he has.

Episode 4

Why Did I Go Mad?

For hundreds of years, psychiatry has treated voices and hallucinations as an enemy - regarding them as 'insanity' or 'madness' and seeing them as something to be quashed and even frightened of. But today, new scientific and psychological insights into how the brain works are leading to a radical rethink on what such experiences are - and how they should be treated.

Episode 5

Strange Signals from Outer Space

59 mins

For decades some have suspected there might be others out there, intelligent beings capable of communicating with us. It might sound like fiction, but scientists from across the globe are scouring the universe for signals from extra terrestrials. The signals and material covered include the Lorimer fast radio burst of 2006, colliding neutron stars, the search at the Green Bank Telescope for radio signals from Tabby's Star, and the possibility there is a Dyson Sphere.

Episode 6

Volcanoes of the Solar System

59 mins

Fascinating parallels between the volcanoes on Earth and those elsewhere in the solar system are drawn by an international team of volcanologists in Iceland.

Episode 7

Antarctica: Ice Station Rescue

Britain's state-of-the-art Antarctic research base Halley VI is in trouble. Built on the Brunt Ice Shelf, it sits atop a massive slab of ice that extends far beyond the Antarctic shoreline. But the ice is breaking apart and just 6km from the station is a ginormous crevasse, which threatens to separate Halley from the rest of the continent, setting the £28 million base adrift on a massive iceberg. So Halley needs to move.

Episode 8

Cyber Attack - The Day the NHS Stopped

A few weeks ago, the National Health Service was hit by a widespread and devastating cyber attack - Horizon tells the inside story of one of the most challenging days in the history of the NHS. On the morning of 12 May the attack started. Appointment systems, pathology labs, x-rays and even CT scanners were infected - putting not just data but patients lives at risk, and on every screen a simple - some may even say polite - message appeared. 'Ooops, your files have been encrypted!'

Episode 9

10 Things You Need to Know About the Future

Hannah interviews some experts and tries to discover the future matters which can change our lives for better or worse, like: climate change, future of transportation, energy production, gene therapy, artificial intelligence, will we all one day become cyborgs?, will we defeat the death? Hannah's tenth prediction is something she - and Horizon - are confident will definitely happen, and that is to expect the unexpected .

Episode 10

Dawn of the Driverless Car

Horizon explores the artificial intelligence required to replace human drivers and explores the implications of a driverless world.

Episode 11

Dippy and the Whale

The Natural History Museum in London is undertaking the biggest challenge in its 130-year history; Dippy, the museum's iconic dinosaur, has been taken down, to be replaced by a 25-meter blue whale.

Episode 12

What Makes a Psychopath?

49 mins

It is estimated that about 1 in 100 people are psychopaths, but although many violent offenders fall into this category it does not mean all psychopaths will be violent. Nor does it mean all violent people are psychopaths. Is the tendency towards psychopathic behaviour something that people are born with, or is it something caused by our upbringing? Find out about the indicative behaviours doctors look out for when making a diagnosis of psychopathy.

Episode 13

Mars: a Traveller's Guide

59 mins

Planet Mars Experts are questioned about Mars Expeditions, and what they would do to Survive. And where they would visit while on the Planet Mars.

Episode 14

Goodbye Cassini - Hello Saturn

60 mins

This documentary is about the end of the Cassini-Huygens space-research mission commonly called 'Cassini'. This was a collaboration between NASA, the European Space Agency (ESA), and the Italian Space Agency (ASI) to send a space probe to study the planet Saturn and its system, including its rings and natural satellites. From its launch in October 1997 to nearly 20 years later in September 2017, the craft has nearly run out of fuel and reached the end of its original and extended missions. 'Horizon' (BBC) visits some of the main scientists working on the 'Cassini' program, and find out their roles and discoveries in this mission. Finally, they meet at a special farewell ceremony at the 'NASA - Jet Propulsion Laboratory' for Cassini's 'Grande Finale'.

Episode 15

Being Transgender

Film exploring what it means to be transgender and what happens when a person transitions psychologically, physically and biologically.