Space Crossword

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Across
  1. 2. There is little in space
  2. 5. Keeps the earth warm
  3. 7. A piece of metal or rock that falls from space
  4. 8. A planet that has three moons
  5. 9. Closest planet to earth
Down
  1. 1. Humans live here
  2. 2. Name for a collection of millions of stars
  3. 3. Used to look at stars during the night
  4. 4. The biggest planet in our solar system
  5. 6. How astronauts travel to the moon