Space crossword

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Across
  1. 2. Large moving rocks in space
  2. 4. When stars are joined to make a picture in the galaxy
  3. 6. Like a small sun
  4. 7. A burning ball of gas
  5. 9. We live on...
  6. 10. What is the blanket of gas?
  7. 12. Neil Armstrong went to the...
Down
  1. 1. Often refers to dirty snowball
  2. 3. What makes up our galaxy
  3. 5. Another word for circle around
  4. 8. A cold planet
  5. 11. A dwarf planet