The Universe

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Across
  1. 3. circle synonym
  2. 5. get more of something useful, get smarter
  3. 7. say that it is true
  4. 8. an object that moves around the earth
Down
  1. 1. the area arround the earth and planets
  2. 2. what you know
  3. 4. all planets and space
  4. 6. "fly" to the moon or another planet with this object