IEEE

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Across
  1. 2. - Cosmos
  2. 5. - Cascading water
  3. 9. - Celestial illumination
  4. 10. - Sweet treat
  5. 11. - Large mammal
  6. 13. - Close companionship
  7. 14. - Journey
  8. 15. - Sun
Down
  1. 1. - Valuable find
  2. 3. - Colorful arc
  3. 4. - Sound of joy
  4. 6. - Insect with wings
  5. 7. - Puzzle
  6. 8. - Joy
  7. 12. - Peaceful calm