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aeronautical - adj. related to the science that deals with airplanes and flying

challenge - n. a difficult task or problem : something that is hard to do

inspiration - n. something that makes someone want to do something or that gives someone an idea about what to do or create : a force or influence that inspires someone

ballistic missile - n. a weapon that is shot through the sky over a great distance and then falls to the ground and explodes

rocket - n. a spacecraft or missile that is powered by a rocket engine

certification - n. official approval to do something professionally or legally

pioneer - v. to help create or develop (new ideas, methods, etc.) : to be a pioneer in the development of (something)