Stars, Constellations, Planets

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Across
  1. 2. has rings made of ice and rocks
  2. 4. Relating to the universe or cosmos
  3. 5. the 88 group of stars that makes an officially recognized shape
  4. 8. people who study stars and outer space
  5. 11. growth; getting bigger
  6. 12. two-wheeled vehicle pulled by a horse
Down
  1. 1. has a great red spot that is a storm
  2. 3. from long ago
  3. 6. a violent explosion that occurs when a massive star dies or a white dwarf star explodes
  4. 7. only planet that supports life
  5. 9. The mighty hunter
  6. 10. the densest object in the universe