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On this day eight years ago, planetary scientist Colin Pillinger was still hopeful that the Beagle 2 Lander that he had spent years designing, building and publicising (with the help of Blur and Damien Hirst) might yet be found somewhere on the surface of Mars. But, as more time passed, it became clear that The Beagle 2 Lander would be forever lost in space. Jim al -Khalili talks to Colin Pillinger about studying moon rock and meteorites from Mars whilst running a successful dairy farm; broken space dreams and why, even if a space project fails, useful scientific lessons can still be learned.