Big Bang Theory

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Across
  1. 4. The universe is always _
  2. 6. The _ of galaxies
  3. 7. Subatomic _
  4. 9. _ Spectrum
  5. 10. element 1 on periodic table
Down
  1. 1. Red and Blue _
  2. 2. Big _ Theory
  3. 3. Made up of all matter and space that exists
  4. 5. Element 2 on periodic table
  5. 8. Cosmic _ background radiation