The universe and planets

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Across
  1. 2. A celestial body made of ice, dust and gas.
  2. 4. Everything that exists.
  3. 5. The largest planet in the Solar System.
  4. 7. The planet with rings around its middle.
  5. 8. A big explosion that created the universe.
  6. 10. A large ball made of gases which produce light.
Down
  1. 1. The closest planet to the Sun.
  2. 3. The 8th planet from the Sun.
  3. 6. ______ galaxies have no recognizable shape at all.
  4. 9. A group of stars held together by gravity.