Astronaut Wallpaper

Astronaut Wallpaper 1

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Astronaut Wallpaper

An astronaut is a person trained by a human spaceflight program to command, pilot, or serve as a crew member of a spacecraft. Members of the space program of Russia or the Soviet Union are referred to as cosmonauts. Although generally reserved for professional space travelers, the terms are sometimes applied to anyone who travels into space, including scientists, politicians, journalists and tourists.  The root “naut” derives from “nautes”, Greek for “sailor.”


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