Universe

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Across
  1. 1. very hot
  2. 5. very cold
  3. 8. very small
  4. 9. has 89 moons.
Down
  1. 2. we will burn our selves.
  2. 3. has a ring
  3. 4. has a lot of dust
  4. 6. there is greenery.
  5. 7. no gravity.
  6. 8. a bit big than mecury.