<P> An astronaut or cosmonaut is a person trained by a human spaceflight program to command , pilot , or serve as a crew member of a spacecraft . Although generally reserved for professional space travelers , the terms are sometimes applied to anyone who travels into space , including scientists , politicians , journalists , and tourists . </P>
<P> An astronaut or cosmonaut is a person trained by a human spaceflight program to command , pilot , or serve as a crew member of a spacecraft . Although generally reserved for professional space travelers , the terms are sometimes applied to anyone who travels into space , including scientists , politicians , journalists , and tourists . </P>
a person who travels in space is called
a person who travels in space is called
An astronaut or cosmonaut
An astronaut or cosmonaut