Going to space is not an easy thing.
Here are the highlights of the preparations and liftoff for the Horizons mission with ESA astronaut Alexander Gerst.
At 11:12 GMT (13:12 CEST) on 6 June 2018, Alexander was launched into space alongside NASA astronaut Serena Auñón-Chancellor and Roscosmos commander Sergei Prokopyev in the Soyuz MS-09 spacecraft from Baikonur cosmodrome in Kazakhstan.
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Follow Alexander and the Horizons mission on social media via bit.ly/AlexanderGerstESA and on bit.ly/HorizonsBlogESA.