The world's first nuclear clock just ticked on — and it could help detect a fifth fundamental force of physics

By using a rare thorium nucleus as a timekeeper, physicists have demonstrated the first working nuclear clock, a device that ...

Nuclear clock ticks for the first time, using a thorium-229 atomic nucleus

World's first thorium-229 nuclear clock shows potential for ultra-precise timekeeping and fundamental physics tests.
The Brighterside of News on MSN

Physicists use thorium-229 to power the world's first working nuclear clock

A clock built from thorium-229 has crossed an important line, from a long-discussed concept to a working device. The shift ...

Physicists Just Built the First-Ever Nuclear Clock

But physicists have long dreamt of even better clocks that run on atomic nuclei, which are less sensitive to environmental ...
Popular Science

The history of clocks is one of tyranny and revolution

🛍️ Amazon Prime Day: The best deals chosen by our editors 🛍️ By Julia Daye Published Feb 20, 2026 9:01 AM EST Add Popular Science (opens in a new tab) More information Adding us as a Preferred ...