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journey – n. trip
atmosphere – n. the gases surrounding any star or planet
climate – n. the normal weather conditions of a place
acronym – n. a name made from a series of letters or parts of a group of words.
instruments – n. tools or devices designed to do something or to make something
orbit – v. to travel in space around a planet or other object; n. the path or way an object travels in space around another object or planet
