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  The Solar System
The Sun
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Mars
Asteroid belt
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Comets, the Kuiper Belt and the Oort Cloud

 
Mars Mars
Lots of probes have travelled to Mars to try to see if life ever existed on the red planet, which might have once run with liquid water.
  • 6,792 km wide
  • 228 million km from the Sun
  • Temperature - minus 55 degrees Celsius
  • Its year is 687 Earth days
  • Its day is 24 hours 37 minutes long
  • It has a thin atmosphere of carbon dioxide
  • It has a small iron core
  • It has two moons, which may be asteroids

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