|Под заказ. Поступление на склад 21.06.2017|
The first trip outside of a spacecraft, or spacewalk, was completed in 1965. Since then many astronauts have participated in spacewalks, but spacewalking does not come without its risks and challenges and astronauts are in constant danger when in space. What are the risks and challenges of spacewalking? How do astronauts overcome them?
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