Cosmic Microwave Background Radiation

Scientists discovered the existence of cosmic background radiation in the 1960’s and it is referred to as the afterglow of the Big Bang Explosion.

The most accurate measurements of this cosmic background radiation came in November 1989, by the Cosmic Background Explorer (COBE) satellite. The measurements from this satellite tested an important prediction of the Big Bang theory. This prediction suggests that the initial explosion that gave birth to the Universe should have created radiation with a spectrum that follows a blackbody curve. The COBE measurements indicated that the spectrum of the cosmic radiation varied from blackbody curve by only 1%. This error is considered insignificant.

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