Physics

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Across
  1. 2. When a celestial body goes around another
  2. 3. star that earth orbits
  3. 4. The abbreviation of the first country that went to the moon
  4. 6. The force that prevents us from flying off of the earth's surface
Down
  1. 1. The celestial body that orbits the earth
  2. 3. The vehicle you use to travel to space
  3. 5. Third planet from the sun