Weekly News Crossword

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Across
  1. 3. The closest planet to the Sun
  2. 6. The star in our solar system
  3. 7. Repeating path an object takes around another object
  4. 9. Ancient civilization; known for alphabet
  5. 10. Sphere in space; we live on one
Down
  1. 1. Armed conflict; usually between countries
  2. 2. State of success
  3. 4. Place we all live in
  4. 5. Ancient civilization; known for numerals
  5. 8. The furthest planet from the Sun