What is the verb form of "astronaut"?
I mean what is the action that an astronaut performs, by moving in space?
A dictionary gave me the word "astronavigation" which is absolutely wrong. This is a task done on Earth and not in space.
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spacewalk 1. a task or mission performed by an astronaut outside a spacecraft in space. http://www.dictionary.com/browse/spacewalk?s=t
Word Hippo gives these synonyms for spacewalk: excursion, extravehicular activity, EVA, moonwalk [this is specific to a spacewalk that occurs on the moon], mission, task http://www.wordhippo.com/what-is/another-word-for/spacewalk.html
space-flight or space flight 1. the flying of manned or unmanned spacecraft into or in outer space. http://www.dictionary.com/browse/spaceflight?s=t
Just go ahead and verb it! Everyone else is doing it. See this comic strip: Verbing weirds language. Why not the word astronaut, too?
John Glenn really knew how to astronaut.
I wish one day I could astronaut myself to the moon like Neil Armstrong.
The following clip is from 1963 in an Ebony magazine article.
Astronauts fly into space, fly to the moon, and orbit the earth. When the rocket engines are firing, they rocket into space.
An astronaut is a space traveler, so and astronaut space travels or travels (through/in) space.
It is derived from the Greek astro (space) and nautēs (sailor). (Various sources online.) However, while science fiction about space flight uses nautical terms in abundance (e.g., a fleet of starships and the use of maritime ranks such as admiral), to sail through space is not so common (but not unheard of).