stars

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Across
  1. 2. a celestial object consisting of a nucleus of ice and dust
  2. 5. the closest star to our earth
  3. 6. a region of space having a gravitational field
  4. 8. a star that suddenly increases greatly in brightness
  5. 10. what stars are made up of
  6. 11. biggest star in the universe
Down
  1. 1. the natural satellite of the earth, visible chiefly at night
  2. 3. a small rocky body orbiting the sun
  3. 4. a cloud of gas and dust in outer space
  4. 5. something that is in the sky all the time
  5. 7. a small body of matter from outer space that enters the earth's atmosphere
  6. 9. a celestial body distinguished from the fixed stars by having an apparent motion of its own