BSL Astronomy – Big Bang

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(Creator: Xuanyu Han )

Big Bang
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BSL Sign Languages
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(BSL Version)
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BSL Explanation
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(BSL Version – Glossary of Astronomy)
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Glossary of astronomy – big bang

  • Big Bang happened 13 half billion years ago – the expansion of the universe is presumed to have begun with an earliest time in the past explosion, which is referred to as the Big Bang.
  • starting from extremely high density and temperature, space expanded, the universe cooled, and the simplest elements formed.
  • gravity gradually drew matter together to form the first stars and the first galaxies.

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