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Astronomical unit

space Maturity 9-11

Space is very big.

Venustransit 2004-06-08 07-44.jpg
Venustransit 2004-06-08 07-44.jpg
We use a special way to measure it. It is the distance from Earth to the Sun. This helps us know where things are. It is like a giant ruler for space. Can you imagine how far that is?

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File:Venustransit 2004-06-08 07-44.jpg
Venustransit 2004-06-08 07-44.jpg
File:Stellarparallax parsec1.svg
Stellarparallax parsec1.svg
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📚 Content adapted from Wikipedia | Readability: FK 13.6 | Vital Level 4