Secrets of Size: Atoms to Supergalaxies

Dr Adam Rutherford explores the consequences of one of the biggest scientific projects of all time - the decoding of the entire human genome.

The story of the discovery that everything is made from atoms, one of the greatest scientific breakthroughs in history, and the brilliant minds behind it.

In this documentary, Amanda Tapping, known as Samantha Carter from SG-1, shows the scientific background of the successful science fiction series "Stargate SG-1" and lets us take a look behind the scenes.

It s a small world after all. In this revolutionary new series, David Attenborough reveals the marvellous adaptability of the most successful group of animals on the planet. Using pioneering macroscopic filmmaking techniques, he explores in unparalleled detail the intricate, sophisticated behaviours of these fascinating creatures and the complexity of the environments they build and inhabit, in a world normally hidden from the human eye. From armies of killer ants to spiders weaving silken trap doors, ferocious scorpions with paralysing stings, beetles shooting boiling chemicals at their enemies, bees communicating with a waggle dance and assassin bugs that clothe themselves in their victims corpses; David Attenborough will as never before take viewers deep into the macroscopic world of bugs.

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

Dallas Campbell explores the equation which attempts to calculate the number of planets supporting life in our universe.

Professor of physics Jim Al-Khalili investigates the most accurate and yet perplexing scientific theory ever - quantum physics.

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 even attempts to split the atom. He sees inside a nuclear reactor, glimpses one of the rarest elements in the world - radioactive plutonium - and even subjects living tissue to deadly radiation. Ultimately, the film reveals Britain's attempts - past, present and future - to harness the almost limitless power of the atom.

Dr Michael Mosley investigates Britain's most secretive and controversial military research base, Porton Down, on its 100th anniversary. He comes face to face with chemical and biological weapons old and new, reveals the truth about shocking animal and human testing, and discovers how the latest science and technology are helping to defend us against terrorist attacks and rogue nations.

Professor Jim Al-Khalili unravels the mysteries of arguably the most complex object in the cosmos: the human brain.