Did we discover evidence of life on Saturn's moon? Astronomer Royal Michele Dougherty

What will be the most exciting thing we will discover from the Jupiter Icy Moons Explorer (Juice)? It might be liquid water under the surface... But sometimes the most important discovery is the one you never expected to make. Professor Michele Dougherty, Astronomer Royal, talks about what we might learn from the Juice mission, which will reach Jupiter's orbit in five years. She also reflects on the Cassini mission to Saturn's moons, which found a liquid water ocean under the surface and evidence of out-gassing water vapour from the South Pole of Enceladus.