Astronautics
the science of or technology involved in travel beyond the earth’s atmosphere, including interplanetary and interstellar flight.
historical examples
apparently the demand for specific formal education in the science of astronautics is increasing faster than it is being supplied.
the practical values of sp-ce exploration committee on science and astronautics
as far back as i can remember in my childhood, i was always interested in astronautics.
man made albert r. teichner
noun
(functioning as sing) the science and technology of sp-ce flight
n.
1929, see astronaut + -ics.
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- Astronomical distance
the distance from one celestial body to another, measured in astronomical units, light-years, or p-rs-cs.
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a frame of reference in which the sun or center of m-ss of the universe is fixed and which does not rotate with respect to the fixed stars.