Galaxies

123456789101112131415
Across
  1. 1. age of most stars in elliptical galaxies
  2. 4. systems of planets surrounding a star
  3. 6. all space, matter, time, and energy
  4. 11. a huge cloud of gas and dust
  5. 12. smaller than a star
  6. 14. galaxy with no definite shape
  7. 15. age of most stars in irregular galaxies
Down
  1. 2. distance light travels in 1 year
  2. 3. galaxy shaped like an egg
  3. 5. the "fat" center of a galaxy
  4. 7. how the universe is getting bigger
  5. 8. galaxy shaped like a lens or a lentil
  6. 9. rotating galaxy with arms
  7. 10. a huge ball of gas producing own energy
  8. 13. force that holds galaxies together