Planets

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Across
  1. 3. - coldest
  2. 4. - the hottest thing
  3. 6. - not anymore
  4. 7. - bigest
  5. 9. - smallest
  6. 10. - glowing
Down
  1. 1. - least dense
  2. 2. - the hottest
  3. 5. - last
  4. 8. - humans
  5. 9. - idk