Brian Cox tackles some of the most challenging and intriguing questions facing science today by using his best material from past programmes and the latest scientific research.

Horizon interviews some experts and looks at the matters which can change our lives in the future, like: climate change, the future of transport, energy production, gene therapy, artificial intelligence, among other things.

The incredible story of how Pluto has been propelled from an unremarkable ball of ice on the edge of the solar system to a world of unimaginable complexity - where some form of alien life might exis