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11111nata11111 [884]
3 years ago
15

What happened 1 billion years after the Big Bang?

Physics
1 answer:
maks197457 [2]3 years ago
8 0

Explanation:

1 billion years after the big bang, the temperature is 20K and some stars and galaxies began to contract due to the gravitational contraction of the over densities of the previous universe. At about 10 billion years after the big bang, our earth and sun form

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