Astronomy, by Alessandra B

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Across
  1. 5. What causes a star to collapse when fusion ends
  2. 6. Where stars are formed
  3. 9. Radiation emitted by planets
  4. 10. 2 armed galaxies
  5. 12. EM non abbreviated
  6. 13. What a star turns into when it runs out of hydrogen
Down
  1. 1. Used for scanning bones at the doctor
  2. 2. Oval shaped galaxies
  3. 3. Massive stars with high luminosity
  4. 4. The only light we can see
  5. 5. Clusters of stars
  6. 7. Radiation emitted when a black hole is born
  7. 8. The “fetus” of any star
  8. 10. The name of our star
  9. 11. Radiation emitted by spiral galaxies