universe

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Across
  1. 2. is the closest plant to the sun
  2. 3. the furthest from the sun
  3. 7. many galaxies moving away from each other
  4. 8. when large atoms split into smaller atoms
Down
  1. 1. is one of the first elements
  2. 4. held by debre by gravity forming clump masses
  3. 5. the creation of the universe
  4. 6. nucli colliding from one large atom