What If the Moon Didn't Exist

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What if the Moon Didn’t Exist is a collection of speculative articles about different versions of Earth. They were originally published in Astronomy magazine. The scenarios are:

  • Solon – Earth without a Moon
  • Lunholm – Moon closer to Earth
  • Petiel – Earth with less mass
  • Urania – Earth’s axis tilted like that of Uranus
  • Granstar – More massive sun
  • Antar – Effects if a supernova exploded near Earth
  • Cerberon – Star passing through the solar system
  • Diablo – Black Hole passing through the Earth
  • Seeing the world via infrared
  • Effects of ozone layer depletion

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