Etymology
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astronautics (n.)

"the art of traveling in outer space," 1929; see astronaut + -ics.

updated on February 24, 2017

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Definitions of astronautics from WordNet

astronautics (n.)
the theory and practice of navigation through air or space;
Synonyms: aeronautics
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.