After 2000 days on Mars, NASA's Curiosity rover is still going strong. In this month's Space Boffins Richard visits Imperial College London to talk to one of the lead scientists on the mission, Sanjeev Gupta, about water on Mars, life and future astronaut missions. Meanwhile, in Liverpool, Sue discovers the connection between the Beatles and space science, author Vix Southgate chats to Richard about Soviet space dogs and the words of Yuri Gagarin from orbit. Like this podcast? Please help us by supporting the Naked Scientists