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Cosmic distance ladder

space Maturity 9-11

Space is very big.

Extragalactic Distance Ladder en.svg
Extragalactic Distance Ladder en.svg
We use a ladder to find distances. We start with things that are close. Then we use them to find far things. This helps us know how big space is. Can you look at the stars?

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🖼️ Images & Media (4)
File:Extragalactic Distance Ladder en.svg
Extragalactic Distance Ladder en.svg
File:The Astronomer by Tim Wetherell.jpg
The Astronomer by Tim Wetherell.jpg
File:SN1994D.jpg
SN1994D.jpg
File:Galaxy cluster Abell 2218 gravitaitonal lens.jpg
Galaxy cluster Abell 2218 gravitaitonal lens.jpg
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📚 Content adapted from Wikipedia | Readability: FK 14.2 | Vital Level 4