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What two key pieces of evidence support the big bang theory?

Answers.com > Wiki Answers > Categories > Science > Astronomy > What two key pieces of evidence support the big bang theory?
Answer:

All the Galaxies are drifting away so they all were once in the same place.
In all directions one can detect "background radiation" which is a residual from the Big Bang.

First answer by Alonshah. Last edit by Alonshah. Contributor trust: 122 [recommend contributorrecommended]. Question popularity: 6 [recommend question].

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