Two radio astronomers spent months trying to eliminate a faint hiss in their antenna, even scrubbing out pigeon droppings, before realising the noise they couldn’t get rid of was the afterglow of the early universe — the cosmic microwave background left behin - Space Daily
In 1964 and 1965, two radio astronomers at Bell Telephone Laboratories spent roughly a year trying to track down a faint, persistent noise in their antenna. They checked the electronics, they considered the sky, and at one point they cleaned out a pair of nes…
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