# ultra-high-energy cosmic ray

> cosmic-ray particle with a kinetic energy greater than 1 EeV (10¹⁸ eV)

**Wikidata**: [Q1770333](https://www.wikidata.org/wiki/Q1770333)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Ultra-high-energy_cosmic_ray)  
**Source**: https://4ort.xyz/entity/ultra-high-energy-cosmic-ray


## References

1. Freebase Data Dumps. 2013
2. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)