Space & Astronomy

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Across
  1. 3. A small or medium star becomes this when it dies
  2. 7. These stars burn cooler and live longer
  3. 9. These stars burn hotter and die sooner
  4. 11. The Dark Heart of a Galaxy
  5. 12. Solar system with three stars
Down
  1. 1. Low-spin galaxies where stars churn
  2. 2. When a White Dwarf cools
  3. 4. "The engine of creation"
  4. 5. Stars fuse this into Helium
  5. 6. Galaxies with a fast enough spin form
  6. 8. All stars begin in a
  7. 9. Solar system with two stars
  8. 10. Stars arranged from smallest to biggest