NEBULA

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Across
  1. 2. Thick, impenetrable clouds of dusty material
  2. 4. High-energy light and particles emitted
  3. 6. Another name for star-forming nebulae
  4. 9. Between the stars in a galaxy
  5. 10. Describing the glowing hues of nebulae
Down
  1. 1. To cause a nebula's material to spread out
  2. 3. Dense, dark clouds of gas and dust
  3. 5. Force causing nebular clouds to contract
  4. 7. Massive explosions that form some nebulae
  5. 8. Outflowing streams of particles from stars