27 KESÄ. 2017 Julkaisupäivä 19 Katselukerrat

In 2018, ESA astronaut Alexander Gerst from Germany will be travelling to the International Space Station for the second time. During this long-duration spaceflight - which is called the Horizons mission - he will have the role of Space Station commander. Alexander is currently in training at NASA’s Johnson Space Centre in Houston, Texas.

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