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Monday, July 28, 2014

Olber's Paradox

Solution to Olber's Paradox:

"We do not live in an infinite and static visible universe. The universe has a finite age and is expanding. Because only about 13.7 billion years have elapsed since the Big Bang, we can only observe stars out to a finite distance. This means that the number of stars that we can observe is finite. Because of the speed of light, there are portions of the universe we never see, and light from very distant stars has not had time to reach the Earth. Interestingly, the first person to suggest this resolution to Olber's Paradox was the writer Edgar Allan Poe."

Pickover, Clifford A. The physics book. (2011) p. 166.