big bang theory - mskropac.weebly.com · big bang theory. . . and how the universe came to be...
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Big Bang Theory. . . and how the Universe came to be
Monday, May 26, 2014
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Expanding Universe
The Universe is expanding, filled with galaxies that are moving away from one and other.
Monday, May 26, 2014
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Expanding Universe
Edwin Hubble first observed this when he identified individual stars inside the Andromeda galaxy and realized it was separate from the Milky Way.
Monday, May 26, 2014
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Expanding Universe
He also observed that all galaxies are moving away from each other, and the further a galaxy is the faster it travels.
Monday, May 26, 2014
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Big Bang
All matter and energy in the Universe expanded from one tiny dot.There was a hot dense expansion approximately 13.7 billion years ago.
Monday, May 26, 2014
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Monday, May 26, 2014
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Big Bang
The Universe was extremely hot and energy spread outward very quickly.
Monday, May 26, 2014
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Big Bang
As the universe cooled, energy began turning into matter (mainly H)
Monday, May 26, 2014
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Big Bang
Over thousands of years, this matter became clumps, which eventually became stars and galaxies.
Monday, May 26, 2014
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Evidence for the Big Bang
i) Static interference is actually radiation, remnants of energy released from the Big Bang.
Monday, May 26, 2014
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Evidence for the Big Bang
ii) Red Shift: As galaxies move, the light they emit shifts towards the red end of the light spectrum.
Many distant galaxies exhibit red shift.
Monday, May 26, 2014
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Monday, May 26, 2014