Category:Radio astronomy

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The 15 meter Holmdel horn antenna at Bell Telephone Laboratories in Holmdel, New Jersey was built in 1959 for pioneering work in communication satellites for the NASA ECHO I. In 1964, radio astronomers Robert Wilson and Arno Penzias discovered the cosmic microwave background radiation with it, for which they were awarded the 1978 Nobel prize in physics.

The field of astronomy which explores space by using radio frequencies and waves

See the article Beginnings of radio astronomy for a history of radio astronomy's origins


  • Radio interferometry - the techniques where electromagnetic radio waves are divided and then superimposed in order to extract information
  • Very long baseline interferometry - or VLBI, a type of atronomical interferometry that allows observations made by many telescopes to be combined