Earth Science - Expansion of the Universe

Earth Science - Expansion of the Universe
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  • How scientists find out how the universe is expanding
  • The Expansion of the Universe
  • 1919
  • Einstein
  • "Since the spiral nebulae's are moving away in a fast pace that must mean the universe is expanding" 
  • " I think that the universe might be expanding"
  • Hubble
  • Vesto Melvin Slipher
  • 1955
  • "The galaxies and the red-shifted lights indicates that the universe is expanding"
  • The steady state theory and the evolutionary theory both shows the expansion of the universe, but in different ways
  • Robert Dicke
  • 1965
  • "The universe will either expand and cool forever as an open universe or it will be a closed universe."
  • Many astronomers said that the expansion of the universe is caused by the spontaneous creation of particles in empty space. 
  • According to the Big Bang Theory, the universe expanded from an unthinkably small and dense ball of energy.
  • 1993
  • The inflation theory explains this by stating that shortly after the Big Bang, the universe expanded tremendously in a very short amount of time.
  • 2006
  • Dark energy makes up three - quarters of the universe is speeding up the expansion of the universe.
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