Into the Universe

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Across
  1. 3. place in space where gravity has enormous pull
  2. 4. A smaller planet
  3. 7. The star that the Earth orbits
  4. 8. The galaxy including our Solar System.
  5. 9. A body moving in an orbit around a star
  6. 10. Cosmical snowballs of dust, rocks and frozen gasses
  7. 11. Luminous point in the night sky
Down
  1. 1. system of the Sun and other bodies.
  2. 2. Natural satellite of the earth
  3. 5. A planet outside the Solar System.
  4. 6. A system of billions of stars tied by gravity.
  5. 8. A small body of matter from outer space