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Insight, analysis and expert debate as key policy makers are challenged on the latest news stories. From BBC Radio 4's Today programme


Rosetta space mission: The end

September 30th, 2016

Episode 1230 of 1744 episodes

Europe's Rosetta spacecraft is ending after spending two years studying a comet. Professor Mark McCaughrean, senior science advisor at the European Space Agency, explains how Rosetta will land on the comet and what it has achieved in its 12-year journey. (Image: Rosetta. Credit: Getty Images.)

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