The Solar System

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Across
  1. 5. Force that holds the Sun together
  2. 6. This is the area of the solar system where comets can often be found
  3. 9. A comet tail can be 150 million km long but still fit in what container
  4. 12. What planet is sometimes completely engulfed by dust storms
  5. 13. This planet's magnetic field adds to Earth's magnetic field
  6. 15. Has a 610 degree Celsius change between day and night
  7. 16. probe that took pictures of Jupiter in 1980
  8. 17. the direction the sun sets on Venus
  9. 19. distance from the Earth to the Sun
  10. 21. known as the Evening Star and the Morning Star
  11. 22. Powered by thermonuclear fusion reactions
  12. 24. has jet streams that reach speeds of 625km/hr
  13. 26. has an atmosphere similar to primordial Earth
  14. 29. Pluto forms a binary dwarf planet system with this object
  15. 31. These may be made from destroyed comets and moons
  16. 33. This gas may give a planet a bluish green color
  17. 34. It's atmosphere comes and goes depending on it's location in orbit
  18. 36. The comet in the picture
  19. 38. huge structures that deformed the round shape of Mars
  20. 39. Jovian moon that may have a layer of water under the surface
  21. 41. this planet has the strongest winds in the solar system
Down
  1. 1. When Mercury cooled it shrank causing these formations
  2. 2. the name of the one natural satellite of the only planet that has only one
  3. 3. Outermost layer of the Sun that creates the solar winds
  4. 4. the number of planets with ring systems
  5. 7. the largest volcanic mountain in the solar system
  6. 8. these grow at the same rate that the N.American continent crosses the Pacific
  7. 10. The Great Red Spot is one
  8. 11. These make up most of Saturn's rings
  9. 14. The surface of the Sun
  10. 18. The Great Dark Spot may be this type of storm
  11. 20. they contain a nucleus, a coma and a tail
  12. 23. This planet was once thought to be a comet
  13. 25. they can be found between Mars and Jupiter
  14. 27. Mercury has a large core of this stuff
  15. 28. The spacecraft that mapped most of Venus
  16. 29. The Red Planet has markings that were thought to be similar to what manmade structures
  17. 30. The fifth largest planet in the solar system
  18. 32. This craft dropped a probe into the Jovian atmosphere in 1995
  19. 35. This stuff likely caused the smooth plains found on Mercury
  20. 37. This protects Venus from small meteorites
  21. 38. probe that took pictures of Neptune in 1989
  22. 40. This moon may have been captured by Neptune