Astronomical terms

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Across
  1. 2. a group of stars that appear to form a pattern or picture in the sky
  2. 6. a huge star (our closest) that provides heat and light
  3. 7. the study of s....
  4. 9. how the world was created
  5. 11. a period of time (24hrs)
Down
  1. 1. a big white sphere that travels around the earth
  2. 2. known as the snowballs of the solar system
  3. 3. huge spheres of burning has, they come out at night
  4. 4. a person who travels and works in space
  5. 5. a collection of billions of stars held together by gravity
  6. 8. small pieces of Rock or metal that orbit around the sun
  7. 10. makes things float