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Horizon

Horizon

1964Returning Series61 Seasons1173 Episodes7.4TMDB
BBC Two

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

Season 24 Episodes

Browse every episode and jump into details.

Episode 2: The Search for the Disappeared

Jan 12, 1987 · 1h

Report on how forensic scientists ae identifying individual victims amongst the people murdered by Argentina's military juntas, by examination and genetic testing of their remains.

Episode 3: The Blind Watchmaker

Jan 19, 1987 · 1h

In this interview by Horizon, zoologist Richard Dawkins investigates an attack on evolution by scientific creationists, based on the book of the same name by the famous zoologist.

Episode 4: Riding the Stack

Jan 26, 1987 · 1h

Astronauts and space shuttle designers talk about the risks of space flight, in the light of the space shuttle disaster of January 1986.

Episode 7: Energy from Outer Space

Feb 16, 1987 · 1h

Report on exploration into releasing energy sources which came from outer space during the formation of the earth, 4,500 million years ago, and have lain dormant under the earth's crust. In Sweden a five mile deep drill hole was made to unleash this energy.

Episode 8: The Return of the Osprey

Feb 23, 1987 · 1h

Documentary on the Osprey in north east America, where its natural habitat was being damaged by the use of DDT, but after some conservation work the Osprey is returning to the area.

Episode 10: Police Stress: The John Wayne Syndrome

Mar 9, 1987 · 1h

Documentary on the increasing pressure put on the British police resulting in stress and psychological disorders, and also on the work of Dr. Douglas Duckworth, a psychologist at Leeds University who has worked with the police on these problems.

Episode 11: To Engineer Is Human

Mar 16, 1987 · 1h

Engineer Henry Petroski explains why engineering can never be an exact science and looks at examples of engineering failures.

Episode 12: The Magma Chamber

Mar 23, 1987 · 1h

Report on the research into volcanoes by British scientists Professor Geoff Brow n and Dr. Hazel Rymer, who have developed a technique of exploring the magma chambers of volcanoes and predicting when they will erupt.

Episode 13: Broken Images

Mar 30, 1987 · 1h

Report on two sufferers of visual agnosia. The condition affects their ability to impose order on the visual world, even though they are not blind, but it does reveal a great deal about normal perception.

Episode 14: Trial Babies

Apr 6, 1987 · 1h

Report on the different tests done on pregnant women to detect abnormalities in the foetus, with investigation of why these tests are not available in all pregnancies.

Episode 15: After Chernobyl - Closer to Home

Apr 13, 1987 · 1h

Report on the safety of UK nuclear power stations, following the accident at Chernobyl in the USSR in 1986. The programme focuses on the nuclear installation at Hartlepool on Teeside, which has the smallest evacuation zone in the western world.

Episode 16: Making Sex Pay

May 11, 1987 · 1h

James Gould, Professor of Biology at Princeton University, lectures on the mating habits of animals and humans.

Episode 19: Aircrash: The Burning Issue

Jun 1, 1987 · 1h

Report on the need for improved safety features on airplanes in particular the desirability of smoke hoods, plus an interview with a survivor of the 1985 Manchester aircrash.

Episode 21: To Catch a Falling Star

May 15, 1987 · 1h

Report on the future and commercial benefit of research into astronomy conducted by the Royal Greenwich Observatory and other scientific institutions in Great Britain.

Episode 22: In the Light of New Information

Jun 22, 1987 · 1h

Report on the evolution of laser light technology for communication in the 21st century, with a dramatised account of the effect of the technology on our daily lives.

Episode 23: Janice's Choice

Jun 29, 1987 · 1h

Janice Blenkharn's mother died of Huntington's Chorea, which any child of a victim has a 50-50 chance of inheriting. Janice is faced with the choice of having a test, developed after research in South America, to see if she has this incurable genetic disease.

Season 24 FAQ

Quick answers about this season's release timeline and episode lineup.

When did Horizon Season 24 premiere?

Horizon Season 24 premiered on January 5, 1987.

How many episodes are in Horizon Season 24?

Horizon Season 24 has 22 episodes.

What is the first episode of Horizon Season 24?

The season opens with Season 24 Episode 1, "The Twenty-Five Hour Clock". It aired on January 5, 1987.

Go to Season 24 Episode 1

Where to Watch

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