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Usually, astronauts go into space in groups called a crew. ... The responsibilities range from being the commander, the one in charge o.....

An astronomer or astronaut or astrophysicist is called a person who enters space by going above the earth's atmosphere. At present, it .....

An astronomer or astronaut or astrophysicist is called a person who enters space by going above the earth's atmosphere. At present, it ......com

An astronomer or astronaut or astrophysicist is called a person who enters space by going above the earth's atmosphere. At present, it ......com