Universe crossword

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Across
  1. 4. The second biggest planet in our solar system
  2. 6. composed or rock and dust
  3. 7. A system of billions or millions of stars pulled together by gravity
  4. 9. Cloud of gas and dust
  5. 10. A type of galaxy that has no specific shape
Down
  1. 1. A type of galaxy that has kind of an egg shape
  2. 2. composed or rock and dust
  3. 3. An early stage in the evolution of a star
  4. 5. The planet farthest away from our sun
  5. 8. Our planet we live on