Scientists lock a man in a nuclear bunker to uncover how our body clock affects our health
The story of Richard Gray and his remarkable recovery from a catastrophic stroke.
Leading experts on Mars discuss where they would go and what they would need to survive.
Discover the parallels between Earth's volcanoes and those elsewhere in the solar system.
Horizon investigates unusual space signals including the Lorimer Burst.
8/17 BBC weatherman Peter Gibbs makes an emotional return to Antarctica.
3/18 Michael Mosley examines the powerful science behind the ancient idea of fasting.
10/15 Nobel Prize winner Sir Paul Nurse examines why science appears to be under attack.
A look at how our understanding of intelligence has transformed over the last century.
How infinity is older than time, bigger than the universe and stranger than fiction.