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The radiations detected by Arno Penzias and Robert Wilson were the
ultraviolet rays of the Sun

light rays reflected by stars

original heat from the Big Bang

red shift waves produced by Doppler Effect

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AL2006
The radiations detected by Arno Penzias and Robert Wilson
were the original heat from the Big Bang.

Today, we call those waves the "Cosmic Microwave Background".

I'm not sure, but I think those guys were awarded a Nobel Prize in Physics
for that discovery.
The radiations detected by Arno Penzias and Robert Wilson were the original heat from the Big Bang.

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