What is the meaning of space travel?

noun

WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). space travel. Retrieved September 29, 2026, from http://smartdefine.org/space_travel/definitions/1312049
ChicagoWordNet. 2010. "space travel" http://smartdefine.org/space_travel/definitions/1312049 (accessed September 29, 2026).
HarvardWordNet 2010, space travel, Smart Define, viewed 29 September, 2026, <http://smartdefine.org/space_travel/definitions/1312049>.
MLAWordNet. "space travel" 23 October 2010. Web. 29 September 2026. <http://smartdefine.org/space_travel/definitions/1312049>