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Definitions of astronomy:
  • noun:   the branch of physics that studies celestial bodies and the universe as a whole




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Alternative Terms
astrochemistry astrobiology search-for-extraterrestrial-intelligence seti asteroids comet cosmochemistry extraterrestrial-intelligence interstellar-matter planet solar-system faint spectrograph-3 spectrum blurring adaptive-optics fiber-optic-imaging palomar-observatory palomar-mountain cosmological-astronomy faraway hubble-constant vantage ultraviolet black-hole infrared-astronomy x-ray-astronomy x-ray-telescope arecibo penetrating ozone radio-astronomy radio-telescope spectroscopy astronomical-spectroscopy polarimetry neutrino supernova cosmic-ray solar-neutrino astrophysics supercomputers helioseismology simulation supercomputer universe-technology universe ptolemy nicolas-copernicus heliocentrism johannes-kepler galileo-galilei telescope sir-isaac-newton edwin-hubble expanding-universe satellite sputnik space-exploration spacecraft luna-goddess-of-the-moon pioneer-author big-bang cosmology gamma-ray-astronomy radio-and-radar-astronomy calendar m-ton anaxagoras eudoxus-of-cnidus aristarchus-of-samos mathematics utilitarian orrery mundane mahler discouraged-3 seaboard astronomical-almanac sustenance refracting-telescope magnate auspices starlight indefatigable ocular anachronism withstand willingness-3 ardent backyard primeval billion managerial plethora worthwhile quiescent prevailing science star