Evidences of Big Bang Theory

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11 Terms

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Vesto Slipher & Carl Wilhelm Wirtz (1910)

measurement of redshift

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Vesto Slipher & Carl Wilhelm Wirtz (1910)

observation: most spiral galaxies were moving away from the earth

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Georges Lemaître (1927)

proposed alternative idea that the universe is expanding

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Red Shift

shifting of color, heat, and the amount of energy

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Edwin Hubble (1929)

calculated distances between the earth and several galaxies using redshift of light

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Edwin Hubble (1929)

Observation: distant galaxies were moving away from the Earth and one another

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Robert Wilsion & Arno Penzias (1965)

discovered CMBR

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Cosmic Microwave Background Radiation (CMBR)

a low, steady humming noise believed to be energy remains

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Modern Astronomy (2014)

Universe is estimated to be 13.8 billion years old

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Modern Astronomy (2014)

5% was left to be discovered/predicted

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Modern Astronomy (2014)

5% of its composition existing as ordinary matter