BBC Horizon Guide
This pages will contain short episode descriptions for more than 1,200 episodes of the BBC documentary series Horizon, which dates back to the mid-1960s. Please be aware that information contained within the description generally relates to the episode content as it was aired at the time, and facts may have changed since the show was broadcast.
Note that the episodes are listed in alphabetical rather than broadcast order.
10,000 Tombs
10 Things You Need To Know About The Future
A look at ten topic items which will impact human life in the future surrounding science and technology. The items include increasing human mortality, the science of the brain, climate change and changing weather, gene therapy and curing cancer, automation of work, future power generation, cyborgs, the next extinction event, the flying car, and the difficulty of predicting the future.
25 Years in Space
30th Anniversary, The Far Side
40 Years of Murder
40 Years on the Moon
70 Million Animal Mummies: Egypt's Dark Secret
A Bulldozer Through Heaven
A Candle to Nature
A Case of Depression
A Case of Priority
A Child of Our Own
A Child's Guide to Languages
A Close Encounter of the Second Kind
A Code in the Nose
A Cruel Inheritance
Acupuncture
Adam or Eve?
Addicted to Painkillers? Britain's Opioid Crisis
ADHD and Me with Rory Bremner
A Disease of Our Time, Heart Attacks
A Disease of Our Time, Stress
A Fair Share of What Little We Have
African Medicine
After Apollo
After Chernobyl, Closer to Home
Aftershock: The Hunt for Gravitational Waves
After the Flood
After the Iron Age
Against the Clock
A Game of War
A Good Test?
A Handful of Sugar with a Pinch of Salt
A Home Like Ours..., A Story of Four Children
AIDS: A Quest for a Cure
AIDS, A Strange and Deadly Virus
AIDS, Behind Closed Doors
Air Crash Detective
Air Crash, The Burning Issue
Air Crash, The Deadly Puzzle
Airport
Air Safety, The Unknown Factor
A Is for Atom, B Is for Bomb
A Killing Rain
Alan and Marcus Go Forth and Multiply
A Land for All Reasons
Alaskan Pipe Dream
A Lesson for Teacher
Aliens from Mars
Organic compounds were found in a meteorite, though the discovery was eventually shown to be a mistake when it was confirmed the lifeforms were actually contamination from Earth. With a further discovery of another meteorite in Antarctica containing organic compounds in the 1990s, the rock is believed to be from own neighbour, Mars and has set scientists back on a quest to identify life in the solar system.
All Creatures Great and Small
Allergic to the Twentieth Century
Allergies: Modern Life and Me
Allergy Planet
A Man of Two Visions / The Scientist Applied
A Mathematical Mystery Tour
A Matter of Self Defence
A Measure of Uncertainty
A Mediterranean Prospect
A Miracle for Cancer?
A Mission to Heal
A Much Wanted Child
An Affair of the Heart
Anatomy of an Avalanche
Anatomy of a Volcano
In May 1980, Mount St Helens erupted and Dave Crockett also became another victim of the disaster when he was caught in an ash cloud. The predicted eruption was observed by a number of scientists who were keen to analyse the event in person, though it proved to be particularly violent as the pyroclastic flow blasted out a whole side of the volcano, and caused the deaths of fifty-seven people and significant property damage, as well as a lasting legacy on the environment.
And Where Will the Children Play?
An Element of Mystery
A New Green Revolution?
A Newsday Revolution
An Expensive Theology
An Experiment to Save the World
A Nice Sort of Accident to Have
An Ingenious Man, Sir H. John Baker
A Noah's Ark for Europe
A Normal Face
Antarctica: Ice Station Rescue
Following the British Antarctic Survey and the mission to save the Halley VI research station during the Antarctic summer of 2016 and 2017. The station is located on the Brunt ice shelf which is destined to break off, with an ice chasm named Chasm 1 heading straight for the structure. The episode follows the logistical challenge to move the station twenty-three kilometres across the ice to a safer location.
An Unholy Scramble
A Perfect Oil Spill
A Prize Discovery
A Question of Sport...
A Question of Trust
A Race Against Time
Archimedes' Secret
Are Health Tests Really a Good Idea?
Are Video Games Really That Bad?
Are We Alone in the Universe?
Are We Still Evolving?
Are You a Racist?
Are You Doing This for Me Doctor?
Are You Good or Evil?
A Scientist Looks at Religion
A Smile for the Crocodile
Aspects of Alcohol
A Spoonful of Roughage
A Sporting Chance
Assault on the Male
Asteroids - The Good, the Bad and the Ugly
A Time to Be Born
Atlantis Reborn Again
Atlantis Special Edition Part 1: Atlantis Uncovered
Atlantis Special Edition Part 2: Atlantis Reborn
This topics of this episode were revisited in a follow-up episode, aired in December 2000, entitled Atlantis Reborn Again after complaints by Graham Hancock and Robert Bauval.
A Touch of Sensitivity
A Treasury of Trees
A True Madness
Auschwitz, The Blueprints of Genocide
Avalanche: Making a Deadly Snowstorm
Averting Armageddon
Scientists continue to research the potential of an asteroid strike on Earth, and the effects it could have, along with ways an impact could be mitigated. Looking at several recorded asteroid entries into Earth's atmosphere, questions are asked as to how long Earth, and in particular built-up locations will remain lucky after the impact of comet Shoemaker-Levy 9 hitting Jupiter in July 1994 which showed us that the solar system is still developing.
A Vital Poison
Awakening the Frozen Addicts
A War on Science
A Week Without Lying: The Honesty Experiment
A Whisper from Space
A Whole New Medicine
A Wonderful Life
A World of Their Own
Back from the Dead
Bags of Life
Battered Baby, 1: From Generation to Generation
Battered Baby, 2: Breaking the Chain
Battle of the Brains
Beersheva Experiment
Before Babel
Behind the Horoscope
Being Transgender
Believe Me
Benjamin
Better Mind the Computer
Beyond a Joke
Beyond the Milky Way
Beyond the Moon
With John F. Kennedy's promise to land a man on the moon, a look back is taken at the scientific and technological achievement the event was, along with the impact it had on the world at the time. As interest in the Apollo missions faltered and the cost to the taxpayer was processed, questions have been asked about what lies ahead for NASA and the future of the United States in space with the focus on the space shuttle and space station projects.
Billion Dollar Bubble
Billion Marsh
Biology at War: A Plague in the Wind
Biology at War: The Mystery of Yellow Rain
Bird Brain, The Mystery of Bird Navigation
Bitter Cold
Black Holes of Gravity
Black Man - White Science
Black Schizophrenia
Blink: A Horizon Guide to the Senses
Blueprints in the Bloodstream
Body Clock: What makes us tick?
Bones of Contention
Boys on Bubbles / Problems and Puzzles
Brain Poison
Brave New Babies?
Bread
Breaking in Children
Breath of Life
Bridges, When It Comes to the Crunch
Britain's Next Air Disaster? Drones
As drones become more prominent features of life, questions are asked as to whether they will be a potential risk to other flying aircraft. After the Gatwick Airport incident in December 2018, work is being done to test the impact of a drone strike, as well as understand the possible threats of terrorists using drones, as well as technology being put in place to prevent disasters from occurring.
British Science - On the Wrong Track?
Broken Images
Bronze Age Blast-Off
Bruno Bettelheim, 1: The Man Who Cared for Children
Bruno Bettelheim, 2: A Sense of Surviving
Butterflies or Barley?
Bye Bye, Planet Pluto
Discussion around the status of Pluto lead to an agreements and disagreements from different quarters about the definition and characteristics of a planet. Looking back at the history of astronomers and astrologers, and the discovery timeline of the planets and minor-planets, along with the Kuiper Belt discoveries is leading to a revision of the solar system and how objects are classified.
California Dreaming
Camelford, A Bitter Aftertaste
Can AIDS Be Stopped?
Cancer
Cancer at Bay
Cancer, The Pattern in the Genes
Cancer, The Smoker's Gamble
Cannabis
Cannabis: Miracle Medicine or Dangerous Drug?
Cannabis: The Evil Weed?
Can Venice Survive?
Can We Make a Star on Earth?
Careering into Science
Careering On
Carrot or Stick: A Horizon Guide to Raising Kids
Carry On Smoking
Cash from Trash
Cashing in on Paradise
Cashing in on the Ocean
Cat Watch 2014: The New Horizon Experiment: A Cat's Eye View
Cat Watch 2014: The New Horizon Experiment: Cat Talk
Cat Watch 2014: The New Horizon Experiment: The Lion in Your Lap
CERN
Certain of Uncertainty / State of Nature
Chance and Decay / Meteorite Mystery
Cheating Time
Child for a Lifetime
Children Without Words
Chimps Are People Too
Chimps on Death Row
Chimp Talk
China's Child
Chris Packham: 7.7 Billion People and Counting
Clean Eating: The Dirty Truth
Cleared for Take Off
Climate Change: A Horizon Guide
Clive Sinclair, The Anatomy of an Inventor
Cloning the First Human
Close Encounters
Reports of alien encounters and abductions have pervaded for decades, with a range of people making a broad number of claims. The focus are supposed sightings and meetings with the "greys", an alien lifeform believes to be around three feet tall, with a grey complexion and black eyes. Focus surrounds author Budd Hopkins whose popular book Missing Time documented apparent encounters by people who sought out his help.
Cold Fusion: Too Close to the Sun
Colonising Cyberspace
Colourful Notions
Comet of the Century: A Horizon Special
Comfort on Ageing
Coming in from the Cold
Complete Obsession: Body Dysmorphia
Computer Revolution
Concerto
Conjoined Twins
Conquest of the Parasites
Constant Craving: The Science of Addiction
Contented Cows and Other Animals
Coronavirus Special - Part 1
Coronavirus Special - Part 2
Coronavirus Special - What We Know Now
Dr Chris Van Tulleken, Dr Xand Van Tulleken and Dr Guddi Singh look at the latest developments with regards to COVID-19 and tackle the concerns. The team reveal the effect it has had on genetics and medicine research, as well as modelling the pandemic which has lead to a way out of the situation. They also discuss how work done now and lessons learned will help with the next pandemic.
Cosmic Dawn: The Real Moment of Creation
Although the Big Bang is considered the moment of creation of the universe, however for the first one hundred million years of its life, it was dark and empty. The real moment of the birth of everything was actually the Cosmic Dawn, which the birth of the first stars which provided light in the universe. Astronomers are trying to find out more about the Cosmic Dawn with tools which allow them to explore the very first stars.
Could Fish Make My Child Smart?
Crab Nebula
Cracks in the Crust
Crash
In over one hundred years since the first car crash, many lessons have been learned as to what causes them, why they are sometimes fatal, and how to prevent them. The process however has had to contend with opposition from the driving industry, with safety not significantly improving until the 1960s when crash investigators became a part of police departments, and politicians took notice of the skyrocketing death figures.
Crater of Death
Sixty-five million years ago, a significant proportion of life on Earth was wiped out when an asteroid or comet hit the planet, including ending the reign of the dinosaurs in what is known as the Cretaceous-Tertiary extinction event. The hunt for the remnants of the crater lead scientists to Chicxulub on the coast of Mexico, where they have begun piecing together the events of history.
Crime Lab
Crown of Thorns
Curing Alzheimer's
Cyber Attack: The Day the NHS Stopped
Dancing in the Dark: The End of Physics?
Dante Goes to Hell
Darkness Visible
Darwin's Bulldog
Darwin's Dream
Darwin, The Legacy
Dawn of the Clone Age
Dawn of the Driverless Car
Dawn of the Solar Age
Deaf Whale, Dead Whale
Death by Design
Death of a Star
Death of the Dinosaurs
Death of the Iceman
Death of the Working Classes
Death Wish, The Untold Story
Decade
Decoding Danebury
Deepwater Disaster - The Untold Story
In 2010, the BP Deepwater Horizon explosion resulted in the release of a huge amount of oil and gas into the Gulf of Mexico before the well could be capped - eighty-seven days later. With the deaths of eleven people, analysis began to look at the disaster including the failure of the blowout preventer and the race to find a fix to the problem, as scientists begin to count the environmental cost of the damage.
Defeating Cancer
Defeating the Hackers
Defeating the Superbugs
Derek Tastes of Earwax
Designer Wines
Destination Mars
Destination Mars / Editors in Conference
Diagnosis on Demand? The Computer Will See You Now
Diamond Labs
Did Cooking Make Us Human?
Did Darwin Get It Wrong?
Diet: A Horizon Guide
Diet for a Lifetime
Digging Up the Future
Dinosaurs in Your Garden
Dinosaurs: The Hunt for Life
Dippy and the Whale
Dirty Bomb
Discovery
Divers Do It Deeper
Do Cows Make You Mad?
Doctor's Dilemma
Doctors to Be
Doctors to Be, 1: Trial by Interview
Doctors to Be, 2: The Knowledge
Doctors to Be, 3: Welcome to the Real World
Dodging Doomsday
Does the MMR Jab Cause Autism?
Do I Drink Too Much?
Don't Cackle, Lay Eggs
Don't Get Sick in America
Don't Grow Old
Do We Really Need the Railways?
Do You Dig National Parks?
Do You Know What Time It Is?
Do You Remember the Memory Man?
Do You See What I See
Do You Sincerely Want a Long Life?
Dragnet for Diabetes
Drifting of the Continents
Dr. Joseph Needham / Mariner 4
Dr Miller and the Islanders
Dr. Money and the Boy with No Penis
Dr Priestley and the Breath of Life
Due to Lack of Interest Tomorrow Has Been Cancelled
Dying
Dynamo, The Life of Michael Faraday
Earthquakes, The City That Waits to Die
Earthquake Storms
After the Turkish city of Izmit was hit by an earthquake in 1999, scientists have identified a new phenomenon - Earthquake Storms. A warning had been made in 1998 that a disaster was expected in the region, though the forecast had been ignored leading to the deaths of thousands. Further, expectations are that Istanbul may be at risk due to the impact of the earthquake in nearby Izmit.
Easter Island, The Secrets
Easter Island, The Story
East of Bombay
Eat, Fast and Live Longer
Ebola: The Search for a Cure
E-Cigarettes: Miracle or Menace?
Ecstasy and Agony
Einstein, Fame
Einstein's Equation of Life and Death
Einstein's Unfinished Symphony
Einstein, The Miracle Year
Electric Heart
Elements of Risk
Elephants or Ivory
Emerging Viruses
Encounter with Jupiter
Pioneer was the first spacecraft to return pictures and data from the largest planet in the solar system, with both Voyager missions following in the 1980's. These missions enhanced the knowledge known about the Giant Red Spot as well as the rest of the atmosphere, possibilities of life being found on the planet, its magnetic field and faint ring, and the formation and features of the moons Callisto, Europa, Io, and Ganymede.
Encounter with Neptune
Voyager 2 made it all the way out to Neptune in 1989 and immediately began imaging the planet and its moon Triton to learn more about them. Upon arriving and studying Neptune, scientists discovered that it is a strange planet with more activity than expected, including high-speed winds in the Great Dark Spot, three faint rings around the planet, and other small moons found in orbit.
Energy from Outer Space
Epidemic
Eurekaaargh!
Everest: Doctors in the Death Zone Part 1
Everest: Doctors in the Death Zone Part 2
Exodus
Experiments in War
Explosions in the Mind
Extinct: A Horizon Guide to Dinosaurs
Extreme Dinosaurs
Fall-Out from Chernobyl
Farewell Fantastic Venus!
Earth's close twin Venus has been the subject of much exploration, though it is a planet fraught with exploratory difficulty. The Russians in particular sent a number of probes to the planet, and landed on the surface, though these had to contend with the enormous pressures and heat. The Americans also got involved with NASA's launch of Magellan in 1989 which orbited the planet for analysis, and discovered a strange surface.
Fast Life in the Food Chain
Fatbusters
Fat Cats, Thin Mice
Fat Files Special Edition Part 1: Born to Be Fat
Fat Files Special Edition Part 2: Fixing Fat
Fat Files Special Edition Part 3: Living on Air
Father of the Man
Feast to Save the Planet
Fermat's Last Theorem
Feynman, The Pleasure of Finding Things Out
Finding a Voice
Fire
First Britons
First Olympian
Fit to Live
Fix Me
Flight 587
Flight 587 was an Airbus A300 leaving John F. Kennedy Airport, New York to Las Américas International Airport, Santo Domingo, just two months after the 9/11 terrorist attacks. The plane crashed less than two minutes after take-off in the suburban neighbourhood of Belle Harbor and immediately, the conclusion was that the cause had to be terrorism though the NTSB investigation soon revealed the true cause.
Foetal Attraction
Food for Thought
Food Irradiation: Would You Buy It?
Forbidden Events / I am a Madman
For Love or Money
For the Safety of Mankind
Four Fast Legs and a Nose
Fracking: The New Energy Rush
Freak Wave
With one ship a week sinking, some have been known to mysteriously sink without a distress call being issued, and experts have put the situation down to "rogue waves". With even the largest and best maintained ships being affected, the case of the MS München and its sinking in 1978 left evidence behind that the powerful forces of water exist and can appear out of nowhere.
From Earth to Miranda
From Field to Factory
From Here to Infinity
From Peenemunde to the Moon
Fuel for the Future / Collector's Piece
Fusion, The Energy Promise
Gaze in Wonder
Genes in Action / Scientists and War
Genesis
Genes R Us
Genetic Roulette
Genie, Secret of the Wild Child
Genius of the Jet
Gentlemen, Lift Your Skirts
Gerald Edelman, The Man Who Made Up His Mind
Geronimo's Children
Ghost of the Amoco Cadiz
Ghosts in the Dinosaur Graveyard
Gilding the Lily
Global Dimming
Scientific studies are suggesting that we have underestimated the speed of climate change, with the effect of global dimming. In the immediate aftermath of 9/11, scientists discovered the possibility that water vapour trails left behind by now grounded aircraft have a large impact on the climate. As air pollution is reduced through technology, this could mean a big increase in the rate of climate change previously unaccounted for.
Global Village
Global Weirding
The weather appears to be becoming more extreme all over the planet which has lead to some scientists coming up with the term 'Global Weirding'. Starting with the increasing power of hurricanes in the Atlantic, as well as a devastating drought and dust storms in west Texas, the changes will also affect Britain as longer, drier spells are predicted alongside significant flooding due to increasing rainfall.
God on the Brain
Goodbye Cassini: Hello Saturn
Goodbye Gutenberg
Great Ormond Street
Guess What's Coming to Dinner
Hair Care Secrets
Half Hearted About Semi-Skimmed
Half-Way to 1984
Halley's Comet: The Apparition
Hand Me My Sword, Humphrey
Happy Catastrophe
Hard Rock
Heads I Win, Tails You Lose
Hearing Voices
Helike, The Real Atlantis
The search for the lost Greek city of Helike has been likened to a real Atlantis. Supposed to have existed over two thousand years in the past, Helike was a large city which was apparently disappeared over the night, with theories positing that an Earthquake destroyed the city. However, what caused the city to vanish is up for debate as some believed it was swept into the sea, while others suggest liquefaction caused it to be buried under a lagoon.
Hello Universe!
Henry Royce, Mechanic
Here Be Monsters
With the launch of the Hubble Space Telescope in 1990, and other instrumentation, science is beginning to prove theories about the start of the universe, and how galaxies and stars are formed. Starting with Edwin Hubble's work, the continuing scientific study discusses the merging of galaxies and the formations of black holes, and looks at what we know and don't know about the hidden centres of them.
Hidden World
Hide and Seek in Iraq
Hills of Promise
Hi-Tech a la Française
Hitler's Bomb
Homeopathy, The Test
Hopeful Monsters
Horizon 2002
Horizon Revisited, A Tale of Two Feathers
Horizon Revisited, Back to the Dark Ages
Horizon Revisited, Dawn of the Dinosaurs
Horizon Revisited, Mega Tsunami: Coming to a Beach near You
Horizon Revisited, Michael Adler on AIDS
Horizon Revisited, The Human Genome Project
Horizon Revisited, You Do as You Are Told: Jonathan Miller and the Milgram Experiment
Horizon Special: The Vaccine
Hospital, Episode 1922
Hot Jam in the Doughnut
How Best to Make a Man, How Best to Make a Scientist
How Big Is the Universe?
This episode was proceeded by How Small Is the Universe?
How Does It Hurt?
How Does Your Memory Work?
How Do You Read?
How Long Is a Piece of String?
How Mad Are You? Part 1
How Mad Are You? Part 2
How Many People Can Live on Planet Earth?
How Much Can You Drink?
How Much Do You Drink?
How Much Do You Smell?
How Much Is Your Dead Body Worth?
How on Earth Did They Do That?
How Safe Is Surgery?
How Small Is the Universe?
This episode was preceded by How Big Is the Universe?
How They Sold Doomsday
How to Avoid Mistakes in Surgery
How to Build a Time Machine
How to Commit the Perfect Murder
How to Film the Impossible
How to Find Love Online
How to Kill a Human Being
How to Live to Be 101
How to Make Better Decisions
How to Mend a Broken Heart
How to Survive a Disaster
How Violent Are You?
How You Really Make Decisions
Hubble: The Wonders of Space Revealed
Hubble Vision
The Hubble space telescope was launched with a flaw in the size of the optical mirror, which resulted in only blurry images being returned. It was down to the crew of the Endeavour space shuttle to perform a service mission to implement a fix, as well as resolve other issues which had appeared since the launch. The mission, which was subject to immense political pressure, was needed to succeed with failure being a potential death knell for NASA.
Human Version 2.0
Hunters of the Seal
Hunt for the Doomsday Asteroid
Hurricane!
Hypnosis
Icarus' Children
Iceman
While climbing in the Ötztal Alps in September 1991, a body was discovered in a glacier. It was named Ötzi, aged to around forty-five and significantly different from other bodies. Investigations determined that Ötzi lived during the Copper Age between 3400BC and 3100BC and the body is thought to be Europe's oldest natural mummy leading to speculation about who he was and how he died.
Ice Mummies 1: The Ice Maiden
Ice Mummies 2: A Life in Ice
Ice Mummies 3: Frozen in Heaven
Ice Station Antarctica
Icon Earth
I Don't Want to Be a Burden
If at First You Don't Succeed... You Don't Succeed
If Only They Could Speak
I'm Dependent, You're Addicted
Immortal? A Horizon Guide to Ageing
Impact! A Horizon Guide to Car Crashes
Impact! A Horizon Guide to Plane Crashes
In My Lifetime?
Innocent Slaughter?
In Search of Konrad Lorenz
In Search of Pegasus
In Search of the Noble Savage
Inside CERN
Inside Chernobyl Sarcophagus
A recording take by two scientists from the Kurchatov Institute in 1989 who conducted an expedition into the Chernoyl nuclear reactor sarcophagus after its explosion. The video shows the men in various rooms of the severely damaged power plant, though the footage in certain areas is badly impacted by the amount of radiation being given off from the reactor and its effect on the electronics.
Inside Every Fat Man...
Inside the Dark Web
Inside the Shark
Inside the Social Network: Facebook's Difficult Year
In the Beginning Was the Word
In the Last Resort
In the Light of New Information
In the Matter of Dr Alfred Nobel
In the Wake of HMS Sheffield
Intimate Relations
Intimate Strangers
Invasion of the Virions
Investigating Murder
Iras, The Supercooled Eye
Is Alcohol Worse than Ecstasy?
With more drugs, both legal and illegal, being easier to obtain than ever before, there are questions about which are the most society-impacting substances. Taking three criteria for drugs by looking at the impact on the user, the addictiveness of it, and the consequences to society from its use, a scientifically-backed list of the twenty worst drugs has been produced and explained, with some possibly surprising selections.
Is Binge Drinking Really That Bad?
Is Everything We Know About the Universe Wrong?
Is GM Safe?
Is Nuclear Power Safe?
Is Seeing Believing?
Is Your Brain Male or Female?
Ivan
Janice's Choice
Japan Earthquake: A Horizon Special with Iain Stewart
Jimmy Carr and the Science of Laughter
Jimmy's GM Food Fight
Joey
Journey Through the Human Body
Jubilee
Jupiter Revealed
The Juno spacecraft mission will allow scientists the opportunity to explore the inside of Jupiter for the first time, in an effort to answer questions which had been awaiting answers for years. The hope is to find out what makes up the interior of Jupiter beneath its dense atmosphere, which being able to survive the dangers of the planet with its strong radiation and large magnetic field.
Just Another World
Keen as Mustard
Killer Algae
A small plant discovery in California lead to concerns of biologists, which has been termed 'Killer Algae'. The highly invasive water plant was found in a lagoon, with fears that it could spread to the Pacific Ocean, and on to devestate the oceans eco-systems. Named Caulerpa taxifolia, it is a tropical plant which was first found in the Mediterranean Sea in 1984, and has since been discovered in other odd locations.
Killer in the Village
Killer Lakes
At Lake Kivu in Rwanda, West Africa, there is a significant danger to the people living nearby which has killed previously. With the mysterious death of thirty-seven people at Lake Monoun in Cameroon and a much larger incident involving people and animals at Lake Nyos, scientists begin to investigate what could have caused deaths which looked very much like asphyxiation, and how they can be prevented from happening again.
King Coal Revived
King Solomon's Garden
King Solomon's Tablet of Stone
Koestler on Creativity
Kula, A Reason for Giving
Kuru, To Tremble with Fear
Last Flight of the Columbia
Returning from a successful mission in February 2003, the Columbia space shuttle began its re-entry into Earth's atmosphere where it disintegrated resulting in the death of the seven astronauts aboard. The resulting investigation questioned what happened to cause the disaster, whether the astronauts deaths could have been prevented, how future problems of a similar type can be avoided.
Learning from Machines
Legacy of a Volcano
Let Newton Be
Let the Therapy Fit the Crime
Liar
Life and Death in the 21st Century Special Edition Part 1: Living Forever
Life and Death in the 21st Century Special Edition Part 2: Future Plagues
Life and Death in the 21st Century Special Edition Part 3: Designer Babies
Life Blood
Life Is Impossible
Life on Mars
Life Story
Light of the 21st Century
Lindemann Enigma
Listen and Be Loyal
Little Boxes
Little Cat Diaries
Living Death
Living Machines
Living Nightmare
Living with ADHD
Living with Autism
Living with Dying
Longitude
The invention of longitude as a way of identifying the location of a ship on the seas revolutionised the way navigation was conducted. After previously only being able to use the crude method of the speed of the ship in knots and determine position from latitude measurements of the sun's angle to the horizon, the implementation of a way to measure longitude promised the prize of a sum of money to the creator.
Looking for a Happy Landing
Lords of the Sea
Lost City of Nazca
In the desert of Peru, ancient geoglyphs are being investigated with an archaeological dig on the site of what was a large city - Nazca - between 500BC and 500AD. A large number of historical finds have been found and have allowed historians to build up a past of the at times, strange customs of the Nazca people, though their work is disturbed by tomb robbers who are damaging the site.
Lost Waters of the Nile
Lumbered... With Back-Ache!
Machines and People
Madagascar, A Treetop Odyssey
New technology is allowing scientists to reach the canopy of previously untouched rainforest in Madagascar, in a bid to study it and ensure its survival. With the island being cut off from Africa for more than eighty million years, its long isolation had allowed it to develop an array of unique plants and animals. However, these have become under threat by deforestation of their habitat.
Mad but Glad
Madness on Trial
Magic Bullet
Magnet Earth
Making an Honest Fiver
Making Millions the Easy Way
Making of an English Landscape
Making Sex Pay
Malaria, Battle of the Merozoites
Malaria, Defeating the Curse
Man in Search of Himself
Man in Space
Man Made Lakes of Africa
Man meets Duck / The Picture Machines
Man of Science / 'Nature' Tomorrow
Man on Mars: Mission to the Red Planet
Man's Best Friend
Mars: A Horizon Guide
With the possibility of life on Mars, the planet has long captured the imagination. The first pictures pondered canals, forests, and water on the body while science fiction and popular culture suggested strange and exotic lifeforms, though science has since modified expectations with the launch of probes to the surface to perform analysis. However, further plans are in motion to land a human on the planet.
Mars Alive
Mars: A Traveller's Guide
With talk of sending travellers to Mars becoming closer to being reality, scientists discuss what will be needed to achieve a successful mission. With the belief that the first person to set foot on Mars already being alive, questions such as where they should go and what resources will be needed to survive are tackled. This episode also showcases landmarks such as volcanoes, vast plains, and underground caverns.
Mars, Death or Glory?
Mars Special Episode Part 1: Life on Mars
Mars Special Episode Part 2: Destination Mars
Master of the Microscope
Masters of the Desert
Masters of the Ionosphere
Measuring the Roof of the World
Medicine 2000
Meditation and the Mind
Mega-Tsunami, Wave of Destruction
Memory
Men and Sharks / Sir Henry Dale, OM, FRS
Mend Me: A Horizon Guide to Transplants
Microworld
Migraine
Million Ton Tanker
Mind over Body
Mind the Machine
Mines Minerals and Men
Miracle Cure? A Decade of the Human Genome
Miracle in Orbit
Mir Mortals
A look at the three men aboard Mir on the ill-fated space station, which included an American astronaut. Declared unsafe by NASA in 1991, the Americans attempted to bolster relations with Russia and agreed to pay for astronauts to travel to the station as part of preparations for the forthcoming International Space Station. However, various problems on the ageing station culminated in a fire which threatened the lives of those on board.
Mission to Mars
Mistaken Identity
M.I.T.'s ABC / The Disturbed Child
Molecules with Sunglasses
Monitor Me
Moon Children
Moon for Sale
As humans prepare to return to the Moon for the first time since 1972. NASA plans to prepare for colonisation with the missions, with the aim to build a lunar base using a host of new and existing technologies. Other countries, such as China, Russia, and India who also have their own plans, which could lead to fundamental changes in the world in land ownership on the lunar surface, power generation, and mining, as countries plan resource extraction and exploitation of the satellite.
Mosquito!
Most of Our Universe Is Missing
Moving Still
Mr Ludwig's Tropical Dreamland
Muck Today - Poison Tomorrow
Music and the Mind
My Amazing Brain: Richard's War
My Amazing Twin
My Pet Dinosaur
Mystery of the Left Hand
Nanotopia
Nature's Numbers
Navajo, The Last Red Indians
Navigating Europe
Neanderthal
Never Too Late to Learn
New Asteroid Danger
Newpin, A Lifeline
New Star in Orbit
Beginning the construction of the International Space Station in 1998, the NASA story to reach this point is that of a changing goal, going vastly over-budget, and delays of many years. Beginning with a mission initiated by president Ronald Reagan in 1984, the purpose was to provide a place to explore space from a permanently manned habitat, though the idea also has its detractors who question the value of the project.
Nice Guys Finish First
Noah's Ark in Kensington
Noah's Flood
No One Will Take Me Seriously
No Ordinary Genius, Episode 1
No Ordinary Genius, Episode 2
Notes of a Biology Watcher
Not the Cheapest but the Best
Now the Chips are Down
An examination of the invention that is the microprocessor and the development process which built up around Silicon Valley. Taking a look at what it will enable, the show looks at its use in medicine and computer gaming, as well as asking about the effect of automation and what problems it presents to future industry with examples of the introduction of word processors to the office and storage control in warehouses.
Nuclear Nightmares
OCD: A Monster in My Mind
Oceans of the Solar System
Analysis of the bodies in the solar system continues with the search for water. Looking at oceans both past and present, the relationship with the potential for life to have developed is looked at, as well as how that life could possibly still exist on a planet like Mars where there are extremely harsh conditions. Missions to the moons of the solar system have also found water vapour emitted from Enceladus, a potentially deep ocean under thick ice on Ganymede, and oceans of liquid methane on Titan.
Of Big Bangs, Stick Men and Galactic Holes
Oil Spill
On a Different Track
Once a Junkie
Once in a Million Years
One Liverpool or Two?
One Man's Meat
One of Nature's Hotels
One Small Step
Only Skin Deep
Orange Sherbert Kisses
Other Side of the Pill / Search for the Original Mind
Outbreak, The Microbe Masters the Mould
Out of Asia
Out of Control?
Out of Volcanoes
Overkill
Painting by Numbers
Pandemic
Pandemic: A Horizon Guide
Parallel Universes
Parasite of Paradise
Patently Absurd
Patients on Trial
Pedal Power
Percy Pilcher's Flying Machine
Perils of the Deep
Pesticides and Posterity
Pest Wars
Phantasmagoria, The Magic Lantern
Picking Winners
Pill Poppers
Planet Hunters
Playing at Noah
Playing God
Playing with Madness
Pluto: Back From the Dead
With the New Horizons mission arriving at Pluto, the spacecraft has returned new close-up images and scientific discoveries about the distant planet, and in effect, bringing it back from the dead by reinvigorating interest in the distant world. In the days before its arrival, the mission control team had to contend with a communication malfunction which put the entire mission at risk.
Police Stress, John Wayne Syndrome
Portrait of a Poison
Powers of Persuasion
Predators in Your Backyard
Premature Babies, The Limits to Birth
Prisoner or Patient?
Prisoners of Hope
Prisoners of Incest
Professor Bonner and the Slime Moulds
Professor Hawking's Universe
Professor in Toyland
Professor J.B.S. Haldane, Obituary
Professor Regan's Supermarket Secrets
Prof Regan's Beauty Parlour
Project Fido
Project Greenglow: The Quest for Gravity Control
Project Poltergeist
Psychedelic Science
Purple Warrior, Limited War
Purple Warrior, Rules of Engagement
Rail Crash
High speed rail travel is one of the statistically safest way of travelling in the United Kingdom, and with the aid of technology, will continue to improve. Looking at inquiries after previous crashes, and the safeguards introduced as an outcome, a number of crashes and the subsequent investigations are looked at to analyse how safety on the railways has been improved since its early days of rudimentary management.
Red Sea Coral and the Crown of Thorns
Red Star in Orbit, 1: The Invisible Spaceman
From Baikonur Cosmodrome in Kazakhstan, the Soviet space programme continues to make achievements such as logging more than seven thousand manned hours in space, after a large number of firsts. One of the key architects of the early rockets to get the Soviet Union into space was Sergey Pavlovich Korolev whose identity was kept a secret by political leaders, and only referred to by his title until after his death.
Red Star in Orbit, 2: The Dark Side of the Moon
Red Star in Orbit, 3: The Mission
Reflections on a River
Report on V.D.
Resolution on Saturn, 1: The Rings
Resolution on Saturn, 2: The Moons
Restless Genius / Faster, Farther, Higher
Resurrecting the Dead Sea Scrolls
Rheumatism
Riddle of the Joints
Riding the Stack
Route 128 / A Theory of The Earth
Rumours of Wars
Russia's Deep Secrets
Rutherford, The Cavendish Today
Saddam's Secrets
SARS, The True Story
Saturn, Lord of the Rings
The Cassini-Huygens mission started in the early 1990s with a collaboration between NASA and the ESA which will venture to Saturn and its moon Titan. The hopes are that it will improve our understanding of both bodies and continue where the Voyager missions previously left off. However, problems with the mission had to be overcome when a mistake in the design of the radio communication between the two craft was discovered.
Science and Art
Science and the Supernatural
Science... Fiction?
Science Fiction, Science Fact - Alone and Unarmed
Science Fiction, Science Fact - The Dolphins that Joined The Navy
Science for the People
Science Is Dead, Long Live Science
Science on Safari
Science, Toys and Magic
Science Under Attack
Search for Life
Secrets of a Coral Island
Secrets of the Solar System
Secrets of the Star Disc
Seeing Stars
Sex: A Horizon Guide
Sex and Sexuality
Sex Can Be a Problem
Sex-Change?
Sexual Chemistry
Shadows of Bliss
Shark
Shots in the Dark
Should I Eat Meat? How to Feed the Planet
Should I Eat Meat? The Big Health Dilemma
Should We Close Our Zoos?
Siamese Twins
Signs of Life
Signs of the Apes, Songs of the Whales
Silent Children, New Language
Silent Speech
Sir Walter's Journey, A Genetic Map of Britain
Sixty Minutes to Meltdown
Sizewell Under Pressure
Skeleton Key
Skyscraper Fire Fighters
Small Arms, Soft Targets
Smallpox on Death Row
Small Problem with the Mirror
Smart Weapons
Smokers Can Harm Your Health
Smokers' Luck
Snowball Earth
Solar Storms: The Threat to Planet Earth
With the Sun becoming more active, and that increases the risk of solar storms hitting the Earth with the effect of bringing modern life to a standstill. In 1989, Quebec was hit by a solar storm and suffered a major power failure providing a hint of the potential problems - the most vulnerable of which are satellites and electrical systems - leading scientists to study how they can predict the next one.
Some Liked It Hot
Something for Our Children
Sons of Cain
Sorry I Opened My Mouth
So you want to be an Inventor? / The Severed Hand
Space Tourists
Space Volcanoes
Special Senses
Spend and Prosper
Spies in the Wires
Spina Bifida & Me
Sports Doping: Winning at Any Cost?
Square Pegs
Star Gazers
Stone Age Columbus
Stopping Male Suicide
Strangeness Minus Three
Strange Signals from Outer Space!
The chances of an advanced civilisation being discovered in space is considered to be large due to the vast size of the universe, however the lack of communication provides support currently for the opposite. The discovery of a massively powerful signal leads to questions as to whether we are about to find that civilisation, though the science has problems with the strength of the signal indicating a super-advanced society.
Strange Sleep
Stretch Up Tall
Struggling for Control
Stuff: A Horizon Guide to Materials
Sudden Death
Sugar v Fat
Suggers, Fruggers and Data-Muggers
Supercharged, The Grand Prix Car (1924-1939)
Superconductor, The Race for the Prize
Supermassive Black Holes
Supervolcanoes
Supervolcanoes have erupted in the past, and a discovery of dead animal fossils in Nebraska lead to the conclusion that they were killed in an eruption event which was determined to be a supervolcano located in Idaho which covered North America in ash. With a supervolcano discovered in Yellowstone National Park, scientists question how an eruption will come about and what it would mean for life on the Earth.
Survival in the Sahara
Survival of the Fastest
Survival of the Weakest
Surviving a Car Crash
Survivors Guide to Plane Crashes
Taking a look at aircraft crashes and the chance of survival, the aviation safety industry is looked at to find out the best scenarios for surviving. A number of previous accidents are analysed to find out how passengers can reduce injuries during a high-speed impact, survive after ditching into water, where the safest seat on a plane is, how to evacuate safely and what to do in smoke-filled conditions.
Swallowed by a Black Hole
Swallowed by a Sink Hole
In Florida, a 2013 sinkhole claimed the life of Jeff Bush in his own home as his bedroom floor collapsed into a forming chasm. Geologists are investigating the phenomenon which can cause quick-forming holes in the soft limestone rock, which is prone to dissolving when it meets with water. Also occurring in a number of places around the world, the number of sinkholes in Florida has made it almost impossible to count them.
Sweet Solutions
Taking the Credit
Talking Turtle
Taming the Problem Child
Tanks
Taste of Foods to Come
TB, The Forgotten Plague
Technology and Self Determination
Teenagers vs Cancer: A User's Guide
Ten Years in the Antarctic
Thalidomide, A Necessary Evil
Thalidomide, a Second Chance?
The £10 Million Challenge
The 10,000 Year Test
The 250 Million Pound Cancer Cure
The 7/7 Bombers, A Psychological Investigation
The A6 Murder
In 1962, James Hanratty, also known as the A6 Murderer, was hanged after being convicted of the murder of scientist Michael Gregsten who was shot dead on the road the previous year alongside his lover Valerie Storie who survived the incident with paralysis. He died protesting the verdict believing that the crime had been pinned on him by the police despite being identified by Storie as the murderer.
The Academy
The Age of Big Data
The Air of Science
The Amateur Scientist
The Amazing Doctor Newton
The Anthropic Principle
The Ape That Stood Up
The Ape That Took Over the World
The Artificial Heart
The Athlete
The Atkins Diet
The Beginning of Life / Science Friction
The Betrayers
The Bible Code
The Big Chill
Climate Change models have predicted that Britain's weather may become more Meditteranean, though suggestions also indicate this to be wildly wrong, and it may have more similarities with Alaska. Scientific studies are looking at how quickly climate jolts can occur with evidence pointing to changes in the Gulf Stream. This is reckoned alongside the impacts of the average temperature on Earth rising over the next century.
The Big Dishes / The Living Stream
The Big If
The Big Sleep
The Big Smoke / The Model Makers
The Black Sun
The Blind Watchmaker
The Book of Man
The Boy Who Was Turned into a Girl
The Brain Gain / The Sudden Night / Learning to Speak
The Brain Puzzle
The Britannic Greenhouse
The Broken Bridge
The Bulldog's Last Bark?
The Bull's-Eye War
The Butchers of Boxgrove
The Canal in the Jungle
The French attempted to construct the Panama Canal in the late 1800's, in an effort which failed due to death of thousands of workers and difficult conditions. When the American's began construction again in 1904, their attempt started with a disastrous first year, but increased organisation soon had the effort in motion.
The Cancer Detectives of Lin Xian
The Careful Predator
The Case of E.S.P.
The Case of the Ancient Astronauts
Some people posit whether the Earth has already been visited by aliens, whose folklore has made up portions of religion and history. Erich von Däniken's 1968 book Chariots of the Gods? makes a number of claims which proved popular at the time with the public, but fell short scientifically with far more rational explanations on offer.
The Case of the Bermuda Triangle
The Case of the Frozen Addict
The Case of the UFOs
During an aircraft training session, a pilot spotted and recorded a high-flying object which appeared to be similar to a jet. The sighting was added to Project Blue Book, a record and systematic study of unidentified flying object sightings. When the U.S. Air Force concluded that UFOs didn't exist and shut down the project, sightings were still reported and hoaxes continued to be logged.
The Change of Life
The Chemical Dream
The Child Mothers
The Children of Eve
The Children of Peru
The Chopper
The Cleanest Place in the World
The Cline Affair
The Company of Ants and Bees
The Computer That Ate Hollywood
The Contraceptive Pill: How Safe Is It?
The Core
After two new instruments were installed on Hubble, they began to malfunction during operation. The situation lead scientists to discover the South Atlantic Anomaly - an area where the inner Van Allen radiation belt comes closest to Earth's surface, leading to further investigations of the core such as what it is made of and how its operation generates the magnetic field.
The Cornucopia
The Creative Brain - How Insight Works
The Cruel Choice
The Cry for Help
The Curse of Karash
The Curse of Vesuvius
The Curtain of Silence
The Dark Secret of Hendrik Schön
The Day It Rained Periwinkles
The Day the Earth Melted
The Day The Earth Nearly Died
The Day We Learned to Think
The Dead Sea Lives
The Death of the Oceans?
Scientists are investigating how long the oceans can continue to cope with the pressures of commercial fishing and ocean acidification, as life in the ocean continues to dwindle. Due to the influx of new technologies to catch fish such as sonar and factory ships, studies are predicting that fish stocks of the oceans will collapse by 2050, though there have been some improvements in places were measures have been taken.
The Death Star
Until recently, humans were unable to observe as far back as the beginning of the universe. However, belief that the Soviets were testing nuclear weapons on the far side of the moon during the cold war cold war lead to the discovery of gamma-ray bursts believed to be eminating from the edge of the universe. However, the hypothesis proved tricky to accept with the threat of Einstein's Mass-energy equivalence being proved wrong.
The Demonic Ape
The Diamond Makers
The Diary of Discovery
The Dinosaur Hunters
The Dinosaur That Fooled the World
The Doctor Who Makes People Walk Again?
The Dolphins that Joined The Navy / A Theory of The Earth
The Drift from Science
The Earthquake Connection
The Eddystone Lights
The Edelin Affair
The Electronic Frontier
The Elephant's Guide to Sex
The End of God?: A Horizon Guide to Science and Religion
The End of the Solar System
The End of the World? A Horizon Guide to Armageddon
The England Patient
The Equation of Murder
The Expert Witness
The Fall of the World Trade Center
Six months after the attacks on the World Trade Center which resulted in the collapse of both towers, questions are being asked about the construction of the towers. Their design is called into question, and the causes of the failure brings about whether an alternative could have prevented a collapse and if fewer people would have died if changes were made to fire-proofing and floor-truss design.
The Fatal Bargain
The Fat in the Fire
The Fierce People
The Fight to Be Male
The Final Frontier? A Horizon Guide to the Universe
The First 14 Days
The First Americans
The First Signs of Washoe
The First Ten Years
The Food Allergy War
The Forever Fuel
The Fretful Elements
The Future Goes Boom
The Future-Made in Japan?
The Gargantuan Triumph of Science
The Gene Race
The Geneva Event
In October 1982, a scientific experiment took place at CERN to look for sub-atomic particles which had been predicted for the past twenty years. Using an underground particle accelerator, the scientists are looking for the W and Z bosons by way of complex detectors and a precisely constructed experiment which would hopefully reveal the presence of the particles when beams of protons and anti-protons were collided.
The Genius Sperm Bank
The Ghost in Your Genes
The Gifted Child
The Glazed Outlook
The Goddess of the Earth
The Great Balloon Race
The Great British Drought
The Great British Intelligence Test
The Great Computer Scandal / H-Bomb Detectors
The Greatest Advance Since the Wheel
The Great Fish Hunt
The Great Plains Massacre
The Great Robot Race
The Great Wine Revolution
The Greenhouse Effect
The Green Machine
The Grid
The Guinea Pig and the Law
The Gulf War Jigsaw
The Hawking Paradox
The Healing Nightmare
The Heart of Another
The Honest Supermarket: What's Really in Our Food?
The Hope of Progress
The Horizon Guide to AI
The Hot-Blooded Dinosaurs
The Human Animal
The Human Experiment (BSE Special Episode)
The Human Laboratory
The Hunt for AI
The Hunt for the AIDS Vaccine
The Hunt for the Higgs
The Hunt for the Legion Killer
The Hunt for the Supertwister
The Hunting of the Quark
The I-Bomb
The Ice Forms (Antarctica Special Edition Part 1)
Geologists working in Antarctica are exploring the continent in the hope of discovering how it came to exist as it does today, after the break-up of supercontinent Gondwana. The scientists work has them taking rock samples to find out what it looked like in previous times and how it came to develop the large ice sheet which covers the landmass.
The Ice Lives (Antarctica Special Edition Part 2)
The United States Antarctic Programme continues the scientific exploration of the polar region, with the knowledge gained being applied to other environments such as space. Focusing on the McMurdo station, the research centres on human survival in the harsh environment by way of analysing the lives of nematodes, fish, seals, and penguins.
The Ice Melts (Antarctica Special Edition Part 3)
Detection of the human impact on the environment has reached Antarctica, where monitoring stations have measured a two degree temperature rise. As warnings mount through increasing sea levels, there are further fears to the worlds oceans as sea ice and glaciers in the polar region begin to melt at an accelerating rate.
The Immigrant Doctors
The Immortalist
The Incredible Machine
The Insect War
The Intelligence Man
The Intelligent Island
The Invisible Enemy (BSE Special episode)
Their Life in Your Hands
The Keys of Paradise
The Killer Dust
The Knowledge Explosion
The Last Mammoth
The Last of the Polymaths
The Laws of the Land
The Life and Death of the Pine Processionary
The Life and Times of El Niño
The Life and Times of Life and Time
The Life That Lives on Man
The Lonely Children
The Long Long Walkabout
The Long Road to the West
The Long Slide / Men with Gills
The Long Valley
The Lords of the Labyrinth
The Lost City of New Orleans
After Hurricane Katrina hit New Orleans in 2005, scientists started working on whether its flooded fate is a sign of things to come for coastal locations as sea levels continue to rise. Analysis questions how the levees were breached and what the state of the levees were, which had not been predicted to fail, resulting in the finding that the city had been living on borrowed time since they were built.
The Lost Civilisation of Peru
The Lost Pyramids of Caral
The Lost Tribes of Humanity
The Lost World of Lake Vostok
The Lysenko Affair
The Magma Chamber
The Making of a Natural History Film
The Malvern Link
The Manhunters
The Man Makers
The Man Who Lost His Body
The Man Who Moved the Mountains
The Man Who Talks to Frogs
The Mcmaster Experiment
The Measure of Man
The Men Who Bottled a Cow
The Men Who Painted Caves
The Message in the Rocks
The Mexican Oil Dance
The Midas Formula
The Military Necessity
The Million Murdering Death
The Mind of a Murderer, 1: The Case of the Hillside Strangler
The Mind of a Murderer, 2: The Mask of Madness
The Mind's Eye
The Miracle of Life
The Miraculous Wonder, The Human Eye
The Missing Link
Palaeontologists set about finding the missing link of to how our ancestor species left the waters of the seas and moved onto land by way of legs. Setting about finding how a fish had grown legs over four hundred million years ago, the hunt for the fossil of Ichthyostega begins. However, its discovery in Greenland resulted in more questions than answers with a continued gap in the stages of evolution.
The Mondragon Experiment
The Moscow Theatre Siege
The Mould, the Myth and the Microbe
The Mysterious Mr Tesla
The Mystery of Dark Energy
The Mystery of Easter Island
Modern science is beginning to explain the history of Rapa Nui, also known as Easter Island, which was once home to the Rapa Nui people. When it was visited by Dutch explorers, they found large stone heads which had been created which lead to questions about who the people where, how they got to the island, what the purpose of the stone heads were, and what happened to bring an end to their civilisation.
The Mystery of King Arthur and His Round Table
The Mystery of Murder: A Horizon Guide
The Mystery of the Human Hobbit
The Mystery of the Jurassic
The Mystery of the Miami Circle
Near Miami, the discovery of prehistoric life and holes in limestone on an archaelogical dig had scientists questioning what the find could be. Known as the Miami Circle, questions surrounded the age of the formation, who was behind its creation, and what possible purpose it served. Its discovery held up the construction of a residential block, leading to the sale of the land so archaelogical surveys could continue.
The Mystery of the Persian Mummy
The Neglected Harvest
The New Alchemists
The New Breadline
The New Face of Leprosy
The New Sixth Sense
The Next Megaquake
The Nine Months That Made You
The Other Kenya
The Other Way
The Overworked Miracle
The Pathway from Madness
The Periscope War
The Pill for the People
The Placebo Experiment: Can My Brain Cure My Body?
The Planet Hunters
The first announcement of a planet outside the solar system proved to be a mistake, though later revelations have brought the true scale of the universe to view. The search for planets is also intertwined with the search for life, though the location of them requires time and patience of scientists specialising in planet hunting, with some believing that finding planets which are suitable to host life may require a Jupiter-like body to be present in the same system.
The Planets
The Poison That Waits
The Power of the Placebo
The Predator
The President's Guide to Science
The Private Face of Medicine
The Problem of Pain
The Professor of Surgery
The Pyramid Builders
The Quake of 89: The Final Warning?
The Qualyub Project
The Quest for Tannu Tuva
The Race for the Double Helix
The Race to Re-Shape Cars
The Race to Ruin
The competition of the space race continued into the early 1980s with the United States fear that the Russians are ahead of them in space-military technology. The technology discussed centres around developing laser-based weapons which are capable of hitting targets on the Earth, as the episode covers the speed of innovation leading the Russians into space as well as the potential pitfalls of defense spending.
The Rainmaker
The Rat Man, Sigmund Freud
The Real Bionic Man
The Red Deer of Rhum
The Red Planet
There's a Rhino in My Sugar
The Restaurant that Burns Off Calories
The Return of the Osprey
The Rhine's Revenge
The River That Came Clean
The Robots Are Coming
The Runaway Mountain
A recent discovery has been made known as Long Runout Landslides, that allows rock to act much like a liquid, with the first recorded example being the mining town of Frank, Canada in 1903. Other examples have been identified, though geologists have at times disagreed about the ability for rock to move in such a way. Studies of Hawaii have also shown that the theory was highly likely, while the eruption of Mount St Helens confirmed the idea.
The Savage Mind
The Science of Star Trek
The Scientist and the Baby
The Sea Behind the Dunes
The Search for the Disappeared
The Secret
The Secret Life of Caves
The Secret Life of the Cat
The Secret Life of the Dog
More scientific research detailing the link between humans and dogs has recently been underway, and with it comes further understanding of their intelligence and how they came to be domesticated. Using new technology, scientists have been looking at how dogs pick up on human emotion, and in reverse, whether human owners can pick up the communications given off by dogs such as their barks and body language.
The Secret Life of Your Body Clock
The Secret of El Dorado - Discovery of Terra Preta
The Secret of the Snake
The Secrets of Sleep
The Secret Treasures of Zeugma
The Secret World of Pain
The Secret You
The Selfish Gene
The Shadow of Breast Cancer
The Shape of War to Come
The Sharpest Show of the Universe
The Shipwreck
The Sickly Sea
The Six Billion Dollar Experiment
The Slatemakers
The Space Shuttle: A Horizon Guide
As the final space shuttle flight takes place, analysis begins with a look at the history of the space shuttle from its inception to retirement. The contributions it has made to science are also discussed as well as the disasters of Challenger and Columbia that went with it, alongside the financial costs of running the space shuttles and public relations requirements to keep the shuttle viable politically.
The Spike
The State of the Planet
The Steadfast Tin Soldier
The Strange Life and Death of Dr. Turing
The Structure of Life
The Sunspot Mystery
The Surgery of Violence
The Talgai Skull
The Technique of Change
The Telly of Tomorrow
The Terracotta Time Machine
The Theatre of War
The Three Chord Trick
The Time Lords
The Total War Machine
The Transit of Venus: A Horizon Special
The Transplanted Brain
The Transplant Experience
The Trobriand Experiment
The Troubled Mind / Triple-A. S.
The Trouble with Medicine
The Trouble with Space Junk
As more spacecraft are launched and existing equipment is decommissioned, the risks posed by space junk in low-Earth orbit increases. When the International Space Station was threatened by a piece of debris which resulted in astronauts having to prepare for evacuation, questions began to be asked about what can be done to mitigate and resolve the issue.
The Truth About Exercise
The Truth About Fat
The Truth About Looking Young
The Truth About Meteors
The Chelyabinsk Meteor impact in 2013 reminded us that the Earth is as exposed as ever as it orbits the Sun, as it managed to cause damage to the city it passed over, and caused a significant number of injuries from the generated shockwave. Scientists have begun to analyse the camera footage and collected rock samples to further their understanding of the meteor and its origin.
The Truth About Personality
The Truth About Sex
The Truth about Taste
The Truth About Vitamins
The Truth of Troy
The Tsetse Trap
The Twenty-Five Hour Clock
The Unborn Patient
The Unsafe Sea
The Valley of Life or Death
The Victims
The View from Space
The Virus That Cures
The Vision of the Blind
The Vital Spark
The War of the Boffins
The Way Out
The Ways We Move
The Wildest Weather in the Universe
The Wizard Who Spat on the Floor
The Woman Who Thinks Like a Cow
The Wood
The World of Buckminster Fuller
The World of Margaret Mead
The World of Ted Serios
The World Outside
The World's First Face Transplant
The Writing on the Wall
The Wrong Stuff
The Year of the Locusts
Thinking
This Yankee Dodge Beats Mesmerism Hollow
Three Score Years and Then?
Tibet, The Ice Mother
Time of Darkness
Time Stood Still / Weighty Matters
Time Trip
Tim Peake Special: How to Be an Astronaut
Titan, A Place Like Home?
Saturn's moon Titan has been a source of scientific fascination since being visited by the Voyager missions, and with its thick atmosphere, there are questions as to whether it is similar to an early Earth. Beginning in 1990, NASA and the European Space Agency developed the Cassini-Huygens mission to investigate Titan up close by sending a probe down to the surface, during a plan fraught with difficulties.
To Catch a Falling Star
To Die - To Live, The Survivors of Hiroshima
To Engineer Is Human
Toil, Sweat & Tears
To Infinity and Beyond...
Tomorrow's World: A Horizon Special
Too Big Too Soon?
Too Close to the Sun
Total Isolation
Six people are taking part in an experiment in which they are deprived of the senses, and subjected to solitary confinement in an effort to understand the impact on the human body and mind. The research follows on the back of the increased use of solitary confinement for terrorism suspects as well as conditions that soldiers have been subjected to in prisoner of war confinement.
Tots and Quots and Woodgerie
Towers of Ilium / The Exploding City
Town Traffic and Tomorrow
Toxic Town: The Corby Poisonings
Traces of Murder
Tracks on the Oregon Trail
T-Rex Exposed
T. Rex, Warrior or Wimp?
Trial and Error, The Rise and Fall of Gene Therapy
Trial Babies
Trial in the Jungle
Tropical Time Machine
Tsunami, Naming the Dead
Turned on by Danger
New science, lead by Polly Matzinger, is being done on the immune system which could turn the knowledge of the immunology field upside-down. Named the Danger Model, the works looks at how the body's immune system works and is activated, and the process by which it fights off foreign objects in the body, in the hope of improving transplant success, though the work isn't without its detractors.
Tutankhamun's Fireball
TV Is Dead, Long Live TV
Twenty-First Birthday
Twice Born
Twice Five plus the Wings of a Bird
Ulcer Wars
Uranium Goes Critical
An increase in the mining of Uranium raises questions about how long we have until resources are depleted. As its use in energy production has increased significantly, the supplies are struggling to keep up with anticipated demand, for a material which was once more heavily used in glassware and pottery. However, its potential as an efficient energy source was discovered with Fermi's experimentation with the material.
Uranus Encounter
Voyager 2 paid a visit to Uranus in 1986 to build on the little previous knowledge about the planet that was known. Discoveries were made about its atmosphere composition, ring structure, and orbiting satellites. The results of the trip also raised a number of questions such as how its moon Oberon came to have a large mountain-like structure, while Titania has large rifts on the surface of what is believed to be an icy body.
Valley of the Inca
Vanished, The Plane That Disappeared
Virus
Vitamin Pills: Miracle or Myth?
Voices from Silent Hands
Volcanoes of the Deep
The world's most sophisticated submarine machinery is allowing scientists to head to the bottom of the oceans to find out more about the deep-lying volcanoes and their impact on the planet. The scientific team set about engineering a solution to recover a number of hydrothermal vents from the depths of the sea with the plan is to use the collected rock to understand how lifeforms came about on Earth.
Volcano Hell
Waiting for a Heartbeat
Wasting the Alps
After the 1987 flood in the foothills of the Alps which resulted in the death of tens of people, questions are now being asked about how many further damage the area can take from human development caused by the tourist industry. The Alps have also exacerbated inequality as floods and landslides caused by both development and abandonment has left the delicate eco-systems and communities struggling.
Water, Water...
We Are the Aliens
We Love Cigarettes
The love affair with cigarettes around the world has been one of the most successful and most deadly in human history. As the death of the cigarette draws closer in the United Kingdom with the smoking ban being introduced in 2007, as well as laws and programmes in other countries, the effect of smoking is analysed along with the struggles of how people can quit the habit, as society divides over smoking and non-smoking.
We Need to Talk About Death
West of Bangalore
Whales, Dolphins and Men
What a Waste!
What Einstein Never Knew
Whatever Happened to Star Wars?
Whatever Happened to the Energy Crisis?
What Every Girl Should Know
What Happened Before the Big Bang?
What Is One Degree?
What Is Race?
What Is Reality?
What Kind of Doctor?
What Little Girls Are Made Of
What Makes a Genius?
What Makes an Animal Smart?
What Makes a Psychopath?
What Makes Us Clever? A Horizon Guide to Intelligence
What Makes Us Human?
What on Earth Is Wrong with Gravity?
What Price Steak?
What Really Killed the Dinosaurs?
What Sank the Kursk?
What's Killing Our Bees? A Horizon Special
Bill Turnbull presents the situation around what is killing off large numbers of bees. Looking at a variety of causes such as the weather, parasites, and pesticides, scientists are attempting to study the insects in the hope of discovering more about their lives. Experiments are also being conducted to analyse the impact of neonicotinoids on insect populations, and whether the ban in Europe will have an effect. However, the answer may lie in our intensive farming practices and the lack of meadows.
What's so Big About Us?
What's the Matter with Tony Slattery?
What's the Problem with Nudity?
What's the Right Diet for You? A Horizon Special: Episode 1
What's the Right Diet for You? A Horizon Special: Episode 2
What's the Right Diet for You? A Horizon Special: Episode 3
What's Wrong with Our Weather?
What's Wrong with the Sun?
What Time Is Your Body?
Wheels Within Wheels
When Polar Bears Swam in the Thames
When the Breeding Has to Stop
Where Did the Colorado Go?
Where is Flight MH370?
After the disappearance of Malaysia Airlines MH370 from Kuala Lumpa to Beijing in 2014, evidence started to be gathered about where it could have gone, and what the potential causes for such a mystery were. Investigating an initial small amount of evidence, the discovery was made that through deliberate turns, it ended up in the opposite direction and believed to have crashed in the southern Indian Ocean.
Where Must the Money Go? / Phantoms Incorporated
Where Nothing Happens Twice
Where's My Robot?
Which Universe Are We In?
Whispers of Creation
Who Built Stonehenge?
Who Do You Want Your Child to Be?
Who Needs Skill?
Who's Afraid of a Big Black Hole?
Who's Afraid of Designer Babies?
Whose Coast?
Who Will Deliver Your Baby?
Who Will Make Me Better?
Why Are Thin People Not Fat?
Why Are We Getting So Fat?
Why Buildings Make You Sick
Why Can't We Predict Earthquakes?
Why Did I Go Mad?
Why Did Stuart Die?
Why Do Viruses Kill?
Why Do We Dream?
Why Do We Talk?
Wildlife, The Last Great Battle
Will Art Last?
Willingly to School?
Windows of the Soul / Elixir of Youth
Wings of Angels
Winning Gold in 2012
Wolves and Wolfmen
Woof! A Horizon Guide to Dogs
Worlds in Collision
Dr. Immanuel Velikovsky gained notoriety in America between the 1950's and 1970's with his work on social issues of the time based on events of the past, after the publication of his work Worlds in Collision. In the work, Velikovsky argues that Earth suffered catastrophic close contacts with other planets such as Venus and Mars leaving people to question whether he is a great thinker or nonsensical crank.