Nightfall

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Across
  1. 4. first photographed in 2019, only the largest stars end their lives as these
  2. 6. invisible electromagnetic radiation produced by stars, and used for heat vision
  3. 11. the nebula named for this sea crustacean was created by the SN 1054 supernova
  4. 13. main element of most stars (by mass)
  5. 14. outermost layer of sun’s atmosphere, also part of eye, a beer, and a virus
  6. 15. second biggest element of most stars (by mass)
Down
  1. 1. a coronal mass _____ is a release of plasma and accompanying magnetic field from the solar corona, often following a solar flare
  2. 2. relating to stars, also outstanding
  3. 3. invisible electromagnetic radiation produced by stars, remember your sunscreen!
  4. 5. first photographed in 2019, only the largest stars end their lives as these
  5. 7. nuclear process by which stars create energy and heavier elements
  6. 8. at the end of their lifetime, some stars become a white ___
  7. 9. visible energy that radiates from stars
  8. 10. star system with 2 stars
  9. 12. _____ centauri, closest star to the earth besides the sun