our universe

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Across
  1. 3. smallest planet
  2. 4. hottest star in our solar system
  3. 6. named after zeus
  4. 7. its a galaxy
  5. 8. god the sky
  6. 10. when a star explodes
Down
  1. 1. black and its like a vacuum
  2. 2. coldest star
  3. 5. god of the sea
  4. 7. earths tide controller
  5. 9. formed by hydrogen and helium