The business of space travel | DW Documentary
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Astrophysicist Gernot Grömer wants to promote space travel. So he founded the Austrian Space Forum. Grömer sees himself as a "shipbuilder” who’s working on making the journey to Mars possible in 20 to 30 years. To this end, he conducts analog missions here on Earth. For these, scientists known as analog astronauts practice for the journey to the Red Planet, collecting knowledge along the way.
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