Photograph of a radio telescope. A radio telescope is a specialised antenna and radio receiver used to receive radio waves from astronomical radio sources in the sky in radio astronomy. Dated 20th century.
{"Image ImageDescription": "Photograph of a radio telescope. A radio telescope is a specialised antenna and radio receiver used to receive radio waves from astronomical radio sources in the sky in radio astronomy. Dated 20th century. (Photo by: Universal History Archive/Universal Images Group via Getty Images)"}