The things in space

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Across
  1. 1. - The fourth planet from the sun
  2. 5. -A boundless three dimensional extent in which objects and events occur
  3. 7. - Human space flight safety
  4. 8. - The path it takes as it travels around the sun
  5. 9. - a gas giant like Jupiter
  6. 10. - The hottest planet in our solar system
  7. 11. the second smallest planet in our solar system
  8. 12. - A dwarf planet a distant located distant region in our solar system,beyond Neptune
Down
  1. 1. - The smallest planet in our solar system
  2. 2. Planet- to assume a nearly round shape mass
  3. 3. - An orderly or harmonious universe
  4. 4. - A planet on which people live and living things
  5. 5. - Balls of hot explosive gas that make there own light
  6. 6. - An invisible force that pulls objects toward each other
  7. 9. - Where the planets revolve