Big Bang Theory

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Across
  1. 2. the star at the center of our solar system
  2. 5. What all matter is composed of
  3. 7. Made up of all matter and space that exist
  4. 8. a massive collection of stars, dust and clouds of gas
  5. 9. Energy measured from the sun measured in microwaves
Down
  1. 1. optical instrument used for seeing distant objects
  2. 2. consists of everything that orbits or travels around the sun
  3. 3. the universal force of attraction between all matter
  4. 4. A theory that suggests that our universe is always expanding
  5. 6. Used to study light