ADJ.
national
AERONAUTICS + NOUN
administration, space
noun
The design, construction, mathematics, and mechanics of aircraft and other flying objects; the study of and control of how aviation works.
Near-synonyms: aerodynamics, aviation
The theory and practice of aircraft navigation.
Near-synonym: aeronavigation
noun — the theory and practice of navigation through air or space
The planet, known as K2-18b, was discovered in 2015 by the U.S. National Aeronautics and Space Administration.