Life of an astronaut – Alexander Gerst's blog
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20140217_life-of-an-astronaut-alexander-gerst-s-blog_9581.pdf (PDF / 263KB)
This article has been archived. To read or download the article (PDF) please click on the following link.
20140217_life-of-an-astronaut-alexander-gerst-s-blog_9581.pdf (PDF / 263KB)