Equinox

Documentary on nature's ultimate abyss, the black hole. It is the darkest thing in the universe and its gravity is so powerful that not even light can escape. Most start out as brilliant stars which, after millions of years, eventually collapse forming a bottomless pit from which there is no escape.

A look beneath the veil of secrecy that has shrouded Britain's nuclear project for 50 years. Using footage of the British atomic bomb, never before seen, which has been de-classified by the MOD for this programme, the men who built the bomb tell their dramatic story for the first time.