Space

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Across
  1. 1. Galaxies move away from other galaxies
  2. 3. All existing matter in space
  3. 4. The theory that suggests that our universe is denser then it is now
  4. 7. One of the 2 elements that make up most of the elements(25%)
  5. 8. A system of millions of billions of stars together with gas and dust held together by gravitational attraction
  6. 9. The universe was full of it
Down
  1. 2. One of the 2 elements that make up most of the elements(73%)
  2. 4. Galaxies move towards other galaxies
  3. 5. Left over radiation from the Big Bang
  4. 6. Used to study light