Across the Solar System

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Across
  1. 4. made of dust, trails the coma
  2. 6. comet collided into Jupiter
  3. 7. longest tail of comet recorded
  4. 8. made of rocks and metal
  5. 9. Made of ice and dust
  6. 10. smaller than asteroids
  7. 11. head of comet
Down
  1. 1. made of heating metals, behind coma
  2. 2. a path that lets a comet orbit the sun
  3. 3. the most famous comet, Edmund Halley
  4. 5. comet seen for 18 months
  5. 7. a path that makes a comet leave forever