milky puzzles

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Across
  1. 2. uses hydrogen and helium in its core
  2. 5. dust and gas cloud
  3. 8. ¨egg shape¨
  4. 9. a collection of stars gas and dust
  5. 10. after the red giant phase
Down
  1. 1. a galaxy with arms around the center
  2. 3. enormous stars
  3. 4. glowing ball of gas
  4. 6. all of space
  5. 7. a spiral galaxy that our galaxy is in