Cosmos

123456789101112131415
Across
  1. 2. name of our galaxy
  2. 4. has a rings
  3. 8. the layer of gases surrounding a planet
  4. 10. surrounds the solar system
  5. 11. our home
  6. 12. the only one star
  7. 13. the most abundant element in the universe
  8. 14. grants the life to exist
  9. 15. planet closest to our mother-star
Down
  1. 1. where gravity pulls as much that even light cannot escape
  2. 3. our sister galaxy
  3. 5. called the red planet
  4. 6. force of attraction acting between all matter
  5. 7. protects the other planets against comets and asteroids
  6. 9. successfully landed on Mars this year