| 单词 | astronomy |
| 释义 | astronomy (once / 381 pages) n Astronomy is the science that looks up: at stars, at other planets, at solar systems, at galaxies, and at everything else in the universe. The Ancient Greeks used the word astron for "star," so it only makes sense that astronomy would involve the study or the stars (and other unearthly topics). Someone who studies or works in astronomy is an astronomer, and one of the main tools of the trade is the telescope. As telescopes get more and more powerful, astronomers learn more and more about what's going on out there, such as how old a star or planet is. If you ever wondered what's out there besides the Earth, you should learn more about astronomy. WORD FAMILYastronomy: astronomer, astronomic, astronomical, astronomies+/astronomer: astronomers/astronomic: astronomically USAGE EXAMPLESThe family moved to Washington DC when Vera was 10, and it was there that she developed an interest in astronomy. The Guardian(Jan 01, 2017) Jan. 5 — “A Brief History of Dutch Astronomy,” a talk by astronomer Peter Teuben, at the University of Maryland at College Park’s observatory, 8 p.m. Washington Post(Dec 31, 2016) It amounts to two petabytes of data, roughly equivalent to a billion selfies, according to a statement from the University of Hawaii’s Institute for Astronomy. New York Times(Dec 29, 2016) n the branch of physics that studies celestial bodies and the universe as a whole Syn|Hypo|Hyper uranology astrodynamics the branch of astronomy that studies the motion of natural and artificial bodies in space astrometrythe branch of astronomy that deals with the measurement of the position and motion of celestial bodies radio astronomythe branch of astronomy that detects and studies the radio waves emitted by celestial bodies celestial mechanicsthe branch of astronomy concerned with the application of Newton's laws of motion to the motions of heavenly bodies astrophysicsthe branch of astronomy concerned with the physical and chemical properties of celestial bodies selenologythe branch of astronomy that deals with the moon solar physicsthe branch of astronomy that deals with the sun cosmogeny, cosmogony, cosmologythe branch of astrophysics that studies the origin and evolution and structure of the universe natural philosophy, physics the science of matter and energy and their interactions |
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