Fact of the Week
Learn a different fact every week!


Fact of the week
Fact of the week
14 July 2025
Did you know what percentage the sun takes up of all the matter in our solar system?
The solar system is our local corner of the universe. It includes the Sun and everything that moves around it - from space rocks to enormous planets. The sun is so big it makes up 99.9% of ALL the matter in the solar system.

Find out more in:
Big Book of Facts

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23 June 2025
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