# scale factor

> parameter which characterizes the expansion of the universe

**Wikidata**: [Q1332997](https://www.wikidata.org/wiki/Q1332997)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Scale_factor_(cosmology))  
**Source**: https://4ort.xyz/entity/scale-factor


## References

1. BabelNet
2. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)