Big Bang Theory (Standard Model of Cosmology)

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What is the Big Bang Theory?

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The most widely accepted theory that proposes the universe began as a singularity.

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What is a singularity in the context of the Big Bang Theory?

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A point of infinite density and temperature.

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How long ago did the universe begin according to the Big Bang Theory?

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Approximately 13.8 billion years ago.

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What event followed the initial singularity in the Big Bang Theory?

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Cosmic inflation, followed by continuous expansion.

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What evidence supports the Big Bang Theory?

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Cosmic microwave background radiation (CMBR) and redshift of galaxies.