Big Bang Theory Crossword

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Across
  1. 4. Fills up the universe when it began
  2. 6. Used to Study Light
  3. 8. The creation of the Universe
Down
  1. 1. the group of planets with the earth, the sun, mars, etc
  2. 2. Made up of all space and matter
  3. 3. 75% of the universe.
  4. 5. Last name of the person who made the telescope
  5. 6. Last name of the person who made the theory of relativity
  6. 7. Evidence of the Big Bang