astronomy : Idioms & Phrases


astronomy satellite

  • noun a satellite equipped with a telescope to observe infrared radiation
WordNet

astronomy unit

  • noun a linear unit used for astronomical distances
WordNet

Physical astronomy

  • that part of astronomy which treats of the causes of the celestial motions; specifically, that which treats of the motions resulting from universal gravitation.
Webster 1913

radio astronomy

  • noun the branch of astronomy that detects and studies the radio waves emitted by celestial bodies
WordNet