Space magazine Crossword

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Across
  1. 2. This dwarf planet has 5 moons and is the largest dwarf planet.
  2. 6. This celestial object has a radius of 700,064 km and is made from hydrogen and Helium.
  3. 8. These things are composed of rock and metal and orbit the sun.
  4. 12. This type of planet doesn't dominate it's orbit and orbits the sun.
  5. 14. Most of these things have 2 tails, a gaseous tail and a dust tail.
  6. 16. This Planet is the largest terrestrial planet.
  7. 17. This can be pulled in by earths gravity and when they are, they burn up and create a shooting star.
  8. 19. This planet is the fastest travelling planet.
  9. 20. This Planet is not visible to the naked eye and is the farthest from the sun.
Down
  1. 1. This is 8 planets together with their moons orbiting the sun.
  2. 3. This celestial object is earth's only natural satellite.
  3. 4. A large grouping of stars, dust and gas held together by gravity.
  4. 5. This is the study of celestial objects using physics, math and chemistry.
  5. 7. This Planet has 13 rings and was the first planet found.
  6. 9. This planet is the larges/oldest planet in the solar system.
  7. 10. This Planet has an average density less than water.
  8. 11. This Planet has phases just like our moon!
  9. 13. This is a disc shaped region in the solar system and is located in between the orbit of Mars and Jupiter
  10. 15. These mainly occur when clouds of particles left behind by comets enter the atmosphere of a planet.
  11. 17. This Planet has the largest volcano in our solar system.
  12. 18. This is the name of many stars that are grouped together by a gravitational bond.