The Real Death Star

SNIPERS: BULLETPROOF deconstructs and analyzes the little known sniper events that have occurred when no other course of action was possible. The people who planned the takedowns, or pulled the trigger, share their techniques and bring to light the many factors that had to be considered in each mission: terrain, wind speed, temperature, elevation changes... all are critical to taking out targets considered bulletproof. A sniper has one chance, one breath, to rise to the occasion and save the day... if they miss, there may never be another opportunity. As these never told before stories unfold, the viewer also learns about the high tech gear each sniper carries on their classified missions.

Chaos theory has a bad name, conjuring up images of unpredictable weather, economic crashes and science gone wrong. But there is a fascinating and hidden side to Chaos, one that scientists are only now beginning to understand. It turns out that chaos theory answers a question that mankind has asked for millennia - how did we get here?

Margherita. La voce delle stelle

There are endless gruesome ways that the world could end; through nasty, natural disasters or because of some man-made abomination. From maniac killer robots and super volcanoes, to an alien invasion and mutant psycho humans, all options are covered in Ten Ways the World Will End.

The correlation between social class and school performance is a major issue across the world. This miniseries is an attempt to go beyond ideological approaches of the problem. It is a pragmatic, scientific, and international exploration of education techniques. Two thirds of students will hold jobs that have not been invented yet and 47% of current jobs are expected to be replaced by machines.

Four young Americans who've each suffered a Traumatic Brain Injury emerge from their comas at a New Jersey medical facility. Their eyes may be open, but now the real challenge for each of the patients, their families, their doctors and their therapists begins. Brain healing isn't predictable, we're told, and certainly is not guaranteed. So with each 'major' step forward that is observed (opening one's eyes, bending a thumb upon command, vocalizing a word, answering a question correctly) comes a sense of jubilant relief and hope from the families of these patients, but as we soon see, the more a patient progresses, the more difficult things can be for all involved. Moments of faith & hope contrast with disappointments & frustrations, moments of confidence with moments of doubt. It's difficult to watch, and unimaginable to have to ever live through.

An examination of the extinction threat faced by frogs, which have hopped on Earth for some 250 million years and are a crucial cog in the ecosystem. Scientists believe they've pinpointed a cause for the loss of many of the amphibians: the chytrid fungus, which flourishes in high altitudes. Unfortunately, they don't know how to combat it. Included: an isolated forest in Panama that has yet to be touched by the fungus, thus enabling frogs to live and thrive as they have for eons.

Thirty distinguished astronomers are visited at their observatories throughout the world in this comprehensive report of astronomical theories, research, and discoveries.

Of the Seven Wonders of the Ancient World, the Pyramid is the only one to survive. Many believe that even with our 21st-century technology, we could not build anything like it today. Based on the most up-to-date research and the latest archaeological discoveries, here is how the Pyramid came to be.

Follow leading scientists around the world and to the edge of the universe on their quest to solve one of the greatest mysteries of the universe, the mysterious invisible “dark matter.”

What caused Building 7 to collapse on 9/11? Dr. Leroy Hulsey from the University of Alaska Fairbanks may have the answer, following an exhausting four year engineering study.

A short documentary about an engineer in a Chilean observatory.

A short documentary interviewing a renown astronomer and astrophysicist.

A short documentary interviewing an astronomer.

A short documentary of filmmaker Patricio Guzmán interviewing local astronomers.

Physicist Dr Helen Czerski takes us on a journey into the science of bubbles - not just fun toys, but also powerful tools that push back the boundaries of science.

Blue Peter presenters Helen Skelton and Barney Harwood want to learn more about the solar system so they challenge scientists Helen Czerski and Jem Stansfield to find out more. They look at how to make telescopes and rockets, and use a toilet roll to measure the distances between planets.

Dr Helen Czerski delves into the Horizon archive to chart the transformation of a little-known theory into one of the greatest scientific undertakings in history.

Kate Humble and Helen Czerski reveal the inner workings of the sun and investigate why scientists think changes in the sun's behaviour may have powerful effects on our climate.

From Raymond Baxter live on Tomorrow's World testing a new-fangled bulletproof vest on a nervous inventor to Doctor Who's contemporary spin on the War on Terror, British television and the Great British public have been fascinated with the brave new world offered up by science on TV. Narrated by Robert Webb, this documentary takes a fantastic, incisive and funny voyage through the rich heritage of science TV in the UK, from real science programmes (including The Sky At Night, Horizon, Tomorrow's World, The Ascent of Man) to science-fiction (such as The Quatermass Experiment, Doctor Who, Doomwatch, Blake's 7, The Hitchhiker's Guide to the Galaxy), to find out what it tells us about Britain over the last 60 years.