Synopsis
Professor Brian Cox explores how the search for aliens in the solar system has followed the search for water. He looks at Jupiter's moon Europa - a dazzling ball of ice.
Similar broadcast resources

Defeating the Superbugs | Horizon
Meeting the scientists who are tracking the emergence of 'superbugs' - dangerous bacteria resistant to antibiotics - around the world.

Ultra-Processed Food: A Recipe for Ill Health? | Panorama
Ultra-processed foods contain chemicals that regulators say are safe, but there is emerging evidence of a link between some of these chemicals and cancer, diabetes and strokes.