The Early Universe

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The Early Universe

  • The Big Bang that created the universe happened about 13 billion years ago.
  • Space, time and radiation were created in the Big Bang.
  • At first, the universe was a hot glowing ball of radiation and matter. As it expanded, its temperature fell.
  • The universe now is cold and dark except for hot spots that we call stars.

The Stars

  • The stars we see in the night sky are all in the Milky Way galaxy, which is our home galaxy.
  • We can see many more stars in the Milky Way Galaxy using a powerful telescopes. We can also see individual stars in other galaxies.
  • There are billions of Galaxies in the universe.
  • There is a vast empty space between them
  • Light from the furthest galaxies that we


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