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  • noun

Synonyms for spacefaring

a voyage outside the Earth's atmosphere

References in periodicals archive ?
Without someone with a real ideological commitment, it didn't seem we were on any trajectory to become a spacefaring civilization.
All these were factors, certainly, but they are symptoms of a larger problem: We will only begin to develop a truly spacefaring civilization when we feel it is in our interest to do so.
The spacecraft will be encountered and the record played only if there are advanced spacefaring civilizations in interstellar space.