Space crossword -Emily-

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Across
  1. 3. an artificial body placed in orbit around earth or moon
  2. 4. The collection of eight planets and their moons in orbit around the sun
  3. 6. a system of millions and billions of stars, together with gas and dust, held together by gravitational attraction
  4. 8. A piece of rock or metal that has fallen to the earth's surface from outer space
  5. 10. A big star that the earth orbits around
  6. 11. A Celestial object consisting of a nucleus of ice and dust
  7. 12. A small rocky body orbiting the sun
Down
  1. 1. A small body of matter from outer space that enters the earth's atmosphere
  2. 2. A celestial body moving in an elliptical orbit around a star
  3. 5. a unit of astronomical distance equivalent to the distance that light travels in one year
  4. 7. a spot or patch that appears from time to time on the sun's surface
  5. 8. the natural satellite of the earth visible at night
  6. 9. The curved path of a celestial body or spacecraft around a star
  7. 10. A fixed luminous point in the night sky which is made up of gases