Ariana Browitt Milky Way Vocabulary Crossword

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Across
  1. 4. nebula a cloud of interstellar dust and gas that shines by scattering and reflecting light.
  2. 5. a cold interstellar cloud of gas and dust that appears as a dark patch.
  3. 6. spiral arms in galaxies that are not permanent structures.
  4. 8. a cloud of ionized interstellar gas
  5. 10. old, metal-poor stars formed early in the universe.
  6. 11. uses naturally occurring and intense microwave emissions.
  7. 12. a flattened, rotating structure gas, dust, stars, or other material in orbit or a central body.
  8. 13. first generation stars formed shortly after the big bang.
  9. 15. contains our solar system in a spiral galaxy.
Down
  1. 1. young, metal-rich stars found in the disk and spiral arms of galaxies.
  2. 2. dense spherical collection of hundreds of ancient cloud.
  3. 3. a tight central group of stars found in the middle of most spiral galaxies.
  4. 7. Twenety percent of sky obscured by dust.
  5. 9. a young group of thousands of stars formed from the same molecular cloud.
  6. 14. massive and roughly spherical diffuse component of a galaxy that extends far beyond its visible disk.