Solar System and NASA

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Across
  1. 1. two moons
  2. 3. outer belt
  3. 5. number of dwarf planets in the solar system
  4. 7. 82 moons
  5. 9. biggest planet of the solar system
  6. 10. volcanic moon on Jupiter
Down
  1. 2. 2022 will be first mission
  2. 4. extreme hot and cold
  3. 6. only planet NOT named after a roman god
  4. 8. 1960s space launch, for one