'What it once mined was the sky. While listening with the antenna in May 1964, two young radio astronomers, Arno Penzias and Robert Wilson, picked up an eerie and persistent hum from the heavens.'

https://www.nytimes.com/2023/09/04/science/astronomy-holmdel-antenna-microwaves.html?action=click&module=Well&pgtype=Homepage&section=Science