Why don't we get invisible animals on land? What's at the centre of a gas giant? Did we really land on the moon? Astronomer Matt Bothwell, marine biologist Kate Feller, palaeontologist Jason Head and geneticist Diana Alexander join Chris Smith to shoot the scientific breeze in this month's question and answer spectacular.
The Naked Scientists flagship science show brings you a lighthearted look at the latest scientific breakthroughs, interviews with the world's top scientists, answers to your science questions and science experiments to try at home.