You Can See Light From The Big Bang On An Analog TV
The light produced by the Big Bang is known as the cosmic microwave background, or cosmic microwave radiation. It's been part of our universe for 13.7 billion years, and is all around us. In fact, there are approximately 300 photons from the Big Bang traveling through every cubic centimeter of space. An analog television, tuned between two channels, will also display some of this light in its static.
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Key Facts In This Video
The cosmic microwave radiation from the Big Bang takes 13.7 billion years to reach Earth. (0:00)
The cosmic background radiation tells us the temperature of empty space, which is around 2.725 Kelvin. (1:51)
As incredibly small quantum fluctuations in the universe began to attract each other gravitationally, they coalesced to form the beginnings of the massive structures we know today. (2:37)