Radio-astronomy meaning

The branch of astronomy that uses observations of emissions in the radio part of the electromagnetic spectrum to study extraterrestrial sources such as stars, planets, galaxies, interstellar gas, and dust clouds.
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The branch of astronomy that deals with radio-frequency radiation from space in order to obtain data and information about particular regions in the universe.
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The study of celestial objects by measurement of the radio waves they emit. Radio astronomy has enabled the detection and study of objects such as pulsars, quasars, radio galaxies, and other objects, some of which emit considerably less radiation at other wavelengths. Radio astronomy has contributed to the discovery of cosmic background radiation and has enhanced the understanding of solar activity and the structure of galaxies.
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The branch of astronomy which utilizes radio waves through the use of radio telescopes to study celestial bodies and occurrences.
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