Radio astronomy

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Radio astronomy is a subfield o astronomy that studies celestial objects at radio frequencies. The ineetial detection o radio waves frae an astronomical object wis made in the 1930s, when Karl Jansky observed radiation comin frae the Milky Way. Subsequent observations hae identifee'd a nummer o different soorces o radio emission. Thir include starns an galaxies, as well as entirely new clesses o objects, such as radio galaxies, quasars, pulsars, an masers. The discovery o the cosmic microwave backgrund radiation, regairdit as evidence for the Big Bang theory, wis made throu radio astronomy.