What is space

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Across
  1. 3. the center of the solar system
  2. 4. a group of planets that orbit a sun
  3. 7. a giant rock orbiting a planet
  4. 10. a gas ball filled with hydrogen
  5. 12. a meteor that has hit a body of rock or gas
  6. 13. a part of a sun when there is a concentration of
  7. 14. year traveling at the speed of light for a year
Down
  1. 1. a body of rock and gas that orbit a sun
  2. 2. a group of planets that is made up of many solar systems
  3. 5. an electric piece of metal that orbits around the earth
  4. 6. a bit of rock that travels at great speeds
  5. 7. field flux that inhibit convection
  6. 8. a small rocky body orbiting the sun sometimes in big groups
  7. 9. a a ring that it moves around
  8. 11. known as a dirty snowball a frozen meteor