The Mystery of Existence

The story of the Higgs boson - the so-called 'God particle' - and the man who thought of it

Horizon looks at dark energy - the mysterious force that is unexpectedly causing the universe's expansion to speed up. The effects of dark energy were discovered in 1998, but physicists still don't know what it is. Worse, its very existence calls into question Albert Einstein's general theory of relativity - the cornerstone of modern physics. The hunt for the identity of dark energy is on. Experiments on earth and in space generate data that might provide a clue, but there are also hopes that another Einstein might emerge - someone who can write a new theory explaining the mystery of the dark energy.

High in the Himalayan Mountains a mysterious part of Tibet’s lost history is about to be unearthed. Revealing ancient secrets about the human mind that could have an impact on the way we live today. At 12,000 feet, the body of a Tibetan man has been found seated as if in a state of meditation. He’s perfectly preserved, even a right eye remains, locked in an eternal stare. Authorities know nothing of him, but locals worship him like a God. So who was he and how has his corpse survived today?