BBC four

Lying on the remote north west coast of England is one of the most secret places in the country – Sellafield, the most controversial nuclear facility in Britain. Now, Sellafield are letting nuclear physicist Professor Jim Al-Khalili and the television cameras in to discover the real story. Inside, Jim encounters some of the most dangerous substances on earth, reveals the nature of radiation and ev

Volcanoes have long helped shape the Earth. But what is less well known is that there are volcanoes on other planets and moons that are even more extraordinary than those on our own home planet. This week Horizon follows an international team of volcanologists in Iceland as they draw fascinating parallels with the volcanoes on Earth and those elsewhere in the solar system. Through the team's resea

"Timewatch" is a series of first-class documentaries on historical subjects, spanning all human history. The series tackles events ranging from the coronation of Queen Elizabeth II, to the origin of skeletal remains recovered in a garden in Roman York, to the break-up of possibly the World's most famous pop band; The Beatles. Every programme contains in-depth analysis of the topic and seeks to ans

Lying on the remote north west coast of England is one of the most secret places in the country – Sellafield, the most controversial nuclear facility in Britain. Now, Sellafield are letting nuclear physicist Professor Jim Al-Khalili and the television cameras in to discover the real story. Inside, Jim encounters some of the most dangerous substances on earth, reveals the nature of radiation and ev

The life of the most glamorous plane ever built, told by the people whose lives she touched. We uncover rare footage telling the forgotten row between the French and British governments over the name of Concorde that threatened to derail the whole project. On the eve of the opening of Bristol's multi-million-pound aerospace museum, a cast of engineers, flight technicians and frequent fliers tell t

Sharks are among the most misunderstood predators on the planet, but an international team of scientists is trying to change that. Their research is revealing that sharks can be sociable and intelligent, and they could even help solve some of the toughest medical challenges of the 21st century. However, their breakthroughs come just as many sharks face extinction. Science may now be the only way t

Volcanoes have long helped shape the Earth. But what is less well known is that there are volcanoes on other planets and moons that are even more extraordinary than those on our own home planet. This week Horizon follows an international team of volcanologists in Iceland as they draw fascinating parallels with the volcanoes on Earth and those elsewhere in the solar system. Through the team's resea