The Solar System P.

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Across
  1. 2. What's the name of our Galaxy?
  2. 4. The way the planet is moving?
  3. 5. What's the satellite of the Earth?
  4. 6. The place where is no air to breathe?
  5. 7. An icy, small Solar System?
  6. 8. How do we call a sphere of superheated gas?
Down
  1. 1. What does have the highest speed in the world?
  2. 3. The closest Galaxy to Milky Way?
  3. 6. There is a planet with rings around it?
  4. 8. What's in the center of the Solar System?