Big Bang Theory

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What is the Big Bang Theory?

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The Big Bang Theory is the scientific explanation for the origin of the universe, stating that it expanded from a single point and is still expanding today.

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What does the Big Bang Theory explain?

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It explains how our universe began.

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Which element is most abundant in the universe according to the Big Bang Theory?

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Hydrogen is the most abundant element in the universe.

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What is Cosmic Microwave Background Radiation (CMBR)?

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CMBR is the afterglow radiation from the Big Bang, filling the universe and providing evidence for the theory.

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What does it mean when we say the universe is expanding?

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It means that galaxies are moving away from each other, indicating that the universe is getting larger over time.

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What is redshift?

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Redshift is the phenomenon where light from galaxies moving away from us shifts to longer wavelengths, indicating that they are receding.

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What is blueshift?

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Blueshift is the phenomenon where light from galaxies moving towards us shifts to shorter wavelengths.

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What evidence supports the Big Bang Theory?

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Evidence includes the abundance of hydrogen and helium, the CMBR, and the observation that the universe is expanding.

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What is NOT evidence of the Big Bang Theory?

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Stars that are blue shifted are not evidence of the Big Bang Theory.

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

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The universe began from a hot, dense state and has been expanding ever since.