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Background
About SARAS 3
Note: Detecting a faint signal from such an early period of the Universe is extremely difficult. The celestial signal is exceptionally faint - buried in sky radio waves that come to us from the gas in our own Galaxy, the Milky Way, which are a million times brighter.
Radio Waves
https://www.pib.gov.in/PressReleasePage.aspx?PRID=1802645
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