[{"Bold_text": "noun", "List Items": ["the flight of a spacecraft close enough to a celestial object, as a planet, to gather scientific data.", "Aeronautics.Also called flypast .a low-altitude flight of an aircraft for the benefit of ground observers. flyover(def1) flyover(def1).", "Also called flypast .a low-altitude flight of an aircraft for the benefit of ground observers.", "flyover(def1) flyover(def1)."]}]