Big Bang

Brooklyn Woodson

10 facts about the Big Bang

  • Scientist think the galaxy started in the big bang.
  • Scientist think it happened 14 million years ago.
  • Before the big bang happened the entire Universe was inside a bubble thousands of times smaller than a pinhead.
  • The bubble exploded and the Universe was born.
  • Time, space, and matter all began with the big bang.
  • All in a second the Universe grew from the pinhead to bigger than a galaxy.
  • And it grew at a fantastic rate.
  • In 3 minutes it dropped below 1 billion degrees.
  • After 300,000 years the universe cooled to about 3000 degrees.
  • The universe filled with with clouds of hydrogen and helium gas.