Space Term Crossword

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Across
  1. 3. when a supernova dies down and collapses
  2. 5. a galaxy that contains the solar system
  3. 6. hottest planet in our solar system
  4. 8. largest planet in a solar system with around sixty moons
  5. 9. the planet with the most rings in our solar system
  6. 10. most massive, second largest dwarf planet in the solar system
  7. 12. considered both a planet and a dwarf planet
  8. 13. 3 times as long as the Grand Canyon; once called "Easter Bunny"; dwarf planet
  9. 15. the only planet in our solar system that orbits on its side; the least dense planet
  10. 17. the core of a supernova/supergian star
  11. 18. shaped like an egg, named after Hawaiian goddess; dwarf planet
  12. 19. a very large star brighter than a giant star
  13. 20. a spheroid (ball) made out of hydrogen, helium and plasma
  14. 21. only known planet that can obtain life
Down
  1. 1. a body in the universe that contains millions or billions of stars
  2. 2. closest planet to the sun
  3. 4. the red planet; contains ferricoxide that makes it look very red
  4. 5. a star that fuses hydrogen atoms to form helium atoms in its core
  5. 7. smallest gas giant; surface gravity almost Earth-like
  6. 9. a main sequence star located in our solar system; all the planets orbit around it
  7. 11. when a star explodes MASSIVELY
  8. 14. a galaxy that neighbors the Milky way
  9. 16. a body of interstellar stars