A nomad.
An American space traveler is called an astronaut.
The name "Hodges" is derived from the Old English "hod," meaning "traveler" or "messenger." Another name associated with the meaning of a world traveler is "Peregrine," which comes from the Latin word "peregrinus," meaning "foreigner" or "traveler." Additionally, the name "Voyager" directly evokes the idea of someone who travels the world.
A pilgrim
Astronaut
A pilgrim.
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Traveller
Traveler
You will be called a astronaut.
Traveler
Traveller.
That would be a "pioneer".