Explorations
Space exploration has progressed significantly and the new challenge is now to live and work in space. The explorers construct space stations in the same way the military forces used to erect a bridgehead to conquer a new territory. American and Russian explorers, the two rivals in the race to be the first to land on the moon, were the first to live for short periods of time in space. Subsequently, international cooperation grew and European missions were involved as well.
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