The Big Bang Theory

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What is the Big Bang Theory?

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A theory that states the universe began as a small point that expanded rapidly about 14 billion years ago.

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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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What is the estimated age of the universe?

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The universe is approximately 14 billion years old.

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What will happen to the size of the universe as it ages?

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The universe will continue to get bigger and bigger forever.

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What instrument has allowed us to observe distant objects in space?

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The Hubble telescope.

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

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A point in the universe where density and gravity are thought to be infinite, marking the beginning of the universe.

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What is cosmic microwave background radiation?

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The afterglow radiation from the Big Bang, providing evidence of the universe's early hot state.

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What is redshift in astronomy?

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The phenomenon where light from distant galaxies is shifted to longer wavelengths, indicating that the universe is expanding.

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What is dark energy?

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A mysterious force that is causing the acceleration of the universe's expansion.

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What is the significance of the Hubble's Law?

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It states that the farther away a galaxy is, the faster it is moving away from us, supporting the Big Bang Theory.