# Chinese scientists develop a working nuclear optical clock

https://mins.news/en/item/90776

- China News Service, 2026-10-08 03:16 UTC
- Science
- Original: http://www.ecns.cn/cns-wire/2026-10-08/detail-ihfkxmcz6610716.shtml

> A Chinese team has built a working nuclear clock using a domestically developed 148-nanometer continuous-wave laser and thorium-229 trapped in calcium fluoride crystals. The research was published online in Nature. The team says possible uses include satellite navigation, deep-space exploration, precision surveying and synchronization of communications systems.

## Related coverage

- [Chinese scientists develop nuclear optical clock](https://mins.news/en/item/92492) — CGTN, 2026-10-08
- [Scientists in Vienna and Beijing create the first operating nuclear clocks](https://mins.news/en/item/90113) — Reuters, 2026-10-07