Space Escape

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Across
  1. 3. Milky Way, for example
  2. 4. Sky-at-night observer
  3. 6. Exploding star
  4. 8. Largest of the planets
  5. 9. Planet's path
  6. 10. Gives us light at night
Down
  1. 1. Observatory instrument
  2. 2. Falling star
  3. 5. Mars or Neptune, for example
  4. 7. Someone who goes into space