What is an astronaut?

An astronaut is a person who travels in Space. Until 03 an astronaut was usually trained by the military, government or civil space agents. Now they are trained by the SSO- SpaceShipOne. Every astronaut is accompanied by two or more other astronauts when they travel up into Space. The first Americans on the moon were Ed White, Eugene Cernan and (of course) Neil Armstrong.
an astronaut is a person who specializes in space travel and exploration. an astronaut is put in to space, orbit in a satellite, on other planet or moon to carry out scientific experiments and observations.the result of his/her observation and experiment is sent to earth where we analyse the result.this helps us to know more about the earth, space, other planets, etc.
A space traveler
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