Beyond the Earth

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Across
  1. 2. propsed the Nebular Hypotesis Theory
  2. 4. are small chunks of irregularly shaped objects
  3. 5. is the color sphere of the sun
  4. 8. referred to as "Shooting Stars"
  5. 9. formulated the Big Bang Theory
  6. 10. accoreding to him, two forces hold the plants in their orbit around the sun
  7. 13. is the second type of asteroids
  8. 14. proposed the Planetismal Theory
  9. 15. is the largest asteroid
  10. 16. is the first type of asteroids
  11. 18. are darker, cooler areas in the atmosphere.
Down
  1. 1. are small, but sharp eruptions which last for about 15 minutes to 1 hour
  2. 3. is the light sphere and the main body of the sun
  3. 6. are billowing arches of rose-colored flame
  4. 7. is the outermost layer of the sun's atmosphere
  5. 11. are bubbles of hot gases
  6. 12. are the third type of asteroids
  7. 13. are purely electrical charges that look like neon lights
  8. 17. proposed the Companion Star Theory
  9. 19. is the second largest asteroid