August 4th, 2014
Episode 392 of 571 episodes
Looking ahead to the European Space Agency’s Rosetta mission – the first spacecraft to follow a comet and land a probe on its icy surface. Rosetta arrives at comet Churyumov-Gerasimenko on 6th August. It will then accompany the 4 km chunk of ice and dust close by for more than a year. In November, the craft will a drop a lander to analyse the comet’s make-up and photograph the icescape. Andrew Luck-Baker talks about the mission’s daring orbital manoeuvres and the big scientific questions the mission is designed to answer.