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Mysterious mars - Earth’s older brother

September 2, 2013

Talk: Ulrich Köhler from the German Aerospace Center

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26.10.2012 DW Projekt Zukunft Studiogast Koehler1
To learn more about the Red Planet, we talked to Ulrich Köhler, geologist from the German Aerospace Center.

Mysterious mars - Earth’s older brother

03:48

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