Space

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Across
  1. 2. This planet is nicknamed "Earth's evil twin"
  2. 3. is the only dwarf planet in the asteroid belt
  3. 5. Was the ninth planet until it was dwarfed
  4. 6. This planet is the smallest in the solar system
Down
  1. 1. This planet is the largest in the solar system
  2. 4. This is what type of galaxy our galaxy is
  3. 7. smells like rotten eggs because of Hydrogen sulfide