Astronomy

12345678910111213141516171819
Across
  1. 5. gradual growth of bodies
  2. 8. chunk of debris landed on Earth
  3. 10. outer atmosphere of the Sun
  4. 11. to shrink
  5. 12. point farthest from the Sun
  6. 14. presence of a magnetic sphere
  7. 16. orbits between Mars and Jupiter
  8. 17. to grow
  9. 18. central region of a planet
  10. 19. studies everything in the universe
Down
  1. 1. solidified lava
  2. 2. central region of a shadow
  3. 3. cloud of gas and dust
  4. 4. natural satellite of a planet
  5. 6. chunk of debris entered Earth's atmosphere
  6. 7. brightest part of a comet
  7. 9. vernal and autumnal
  8. 13. event when two bodies pass each other
  9. 15. crater that forms on top of a volcano
  10. 18. high level Earth clouds