Inner planets

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Across
  1. 2. earth like`
  2. 4. to move repeatedly around
  3. 5. a celestial body orbiting a planet
  4. 6. planet with life
  5. 7. hottest planet
Down
  1. 1. smallest planet
  2. 3. a blanket of as sorrounding a planet
  3. 5. red planet
  4. 6. the shape of an orbit