Big Bang theory Crossword Puzzle

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Across
  1. 3. Forces
  2. 7. Space Telescope
  3. 8. Hole
  4. 10. Bang Theory
  5. 11. Fireball
  6. 12. Lines
Down
  1. 1. Era
  2. 2. Matter
  3. 4. Shift
  4. 5. Density
  5. 6. Fusion
  6. 9. Background Radiation*