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as manager of the rosetta mission, fred jansen was responsible for the successful 2014 landing of a probe on the comet known as 67p/churyumov-gera sime (more)

as manager of the rosetta mission, fred jansen was responsible for the successful 2014 landing of a probe on the comet known as 67p/churyumov-gerasimenko. in this fascinating and funny talk, jansen reveals some of the intricate calculations that went into landing the philae probe on a comet 500 million kilometers from earth -- and shares some incredible photographs taken along the way.

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