Episode list

Horizon

Hair Care Secrets
Physicist Helen Czerski and a team of experts demystify the world of hair and sort the pseudoscience from the true science in this world of secret research.
6.6 /10
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.
7.1 /10
Strange Signals from Outer Space
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.
6.7 /10
Volcanoes of the Solar System
Fascinating parallels between the volcanoes on Earth and those elsewhere in the solar system are drawn by an international team of volcanologists in Iceland.
7.4 /10
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.
6.8 /10
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!'
7.4 /10
10 Things You Need to Know About the Future
Horizon interviews some experts and looks at the matters which can change our lives in the future, like: climate change, the future of transport, energy production, gene therapy, artificial intelligence, among other things.
7.2 /10
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.
7.4 /10
What Makes a Psychopath?
You don't have to look very hard to find a news story about a violent crime committed by someone who seems to display a callous disregard for the consequences of their actions.
6.1 /10
Mars: a Traveller's Guide
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.
7 /10
Goodbye Cassini - Hello Saturn
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'.
8.4 /10
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