Solar system

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Across
  1. 2. Used to fly into space
  2. 4. The opposite of hot, like Neptune and Uranus
  3. 5. The big star at the center of our solar system
  4. 6. The opposite of small, like Jupiter
  5. 7. A shining ball in the sky
  6. 8. There are 8 in the solar system
Down
  1. 1. The opposite of cold, like Mercury and Venus
  2. 2. The color of Mars
  3. 3. It shines at night
  4. 5. The opposite of big, like Mercury
  5. 6. The color of Earth and Neptune