Links to Historical telescopes at Green Bank.
Jansky Antenna: the discovery of cosmic radio waves.
Reber Telescope: the first surveys of "cosmic static".
Ewen-Purcell horn: discovery of 21cm emission from hydrogen.
Tatel Telescope: early astronomy at Green Bank.
The 300-foot telescope.
Education & Tour Programs at NRAO
Early History of Radio Astronomy
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Radio Astronomy Basics