inner planets

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Across
  1. 1. celestial object that orbits
  2. 4. contains water and oxygen needed for life
  3. 5. earth like
  4. 6. planets between the Sun and asteroid belt
  5. 8. gasses that surround a planet
  6. 9. known as red planet
Down
  1. 2. planets that are further from the Sun
  2. 3. moving repeditaly around
  3. 7. earths sister planet
  4. 9. shortest orbit around the Sun