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jan 1, 1964 - Cosmic Microwave Background Radiation

Description:

Arno Penzias and Robert Wilson discover cosmic microwave background radiation, which they suspect is the afterglow of the big bang. Their measurements, combined with Edwin Hubble's earlier finding that the galaxies are rushing away, make a strong case for the big bang theory of the birth of the universe.

Added to timeline:

Date:

jan 1, 1964
Now
~ 61 years ago