The Open University

When the space shuttle Challenger blew up in 1986, it was the most shocking event in the history of American spaceflight. The deaths of seven astronauts, including the first teacher in space Christa McAuliffe, were watched live on television by millions of viewers. But what was more shocking was that the cause of the disaster might never be uncovered. The Challenger is the story of how Richard Feynman, one of America's most famous scientists, helped to discover the cause of a tragedy that stunned America.

Darwin's great insight – that life has evolved over millions of years by natural selection – has been the cornerstone of all David Attenborough’s natural history series. In this documentary, he takes us on a deeply personal journey which reflects his own life and the way he came to understand Darwin’s theory.

Richard Feynman is one of the most iconic, influential and inspiring scientists of the 20th century. He helped design the atomic bomb, solved the mystery of the Challenger Shuttle catastrophe and won a Nobel Prize. Now, 25 years after his death - in his own words and those of his friends and family - this is the story of the most captivating communicator in the history of science.

England, while the storm clouds of Nazism menace Germany. Robert Watson Watt and a team of eccentric and brilliant meteorologists struggle to turn the mere idea of radar into a functional reality.

Behind the scenes of 'The Spy Who Loved Me', produced by The Open University.

Human extinction is almost impossible to imagine, but the notion is never far away in environmental debates. This animation takes an insect eye view to explore these deeply troubling themes with wit and generosity.

Based on diaries, records and eyewitness accounts, this is the story of the two Battles of the Somme from the perspective of British and German soldiers. It shows how the major lessons learned by the British Army leadership after the disastrous first attacks of July 1916 were turned into victory at the second attempt in September 1916, arguably the turning point for the First World War.

Here's the full true story of "Bloody Omaha". Thousands of soldiers were killed as soon as they stepped onto the beach, or even into the water as they waded to shore.