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

First dreamed up decades ago, the world's first nuclear clocks are set to improve quickly, becoming more precise and aiding ...

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

In the quest for ultra-precise timekeeping, scientists have turned to nuclear clocks. Unlike optical atomic clocks—which rely on electronic transitions—nuclear clocks utilize the energy transitions in ...

(koto_feja/Getty Images) A breakthrough in chronometry decades in the making could redefine the limits of how we keep time.

WASHINGTON — Atomic scientists set their "Doomsday Clock" on Tuesday closer than ever to midnight, citing aggressive behavior by nuclear powers Russia, China and the United States, fraying nuclear ...

The Bulletin of Atomic Scientists has set the Doomsday Clock to 85 seconds to midnight. It is the closest the clock has ever been to midnight in its history. The Bulletin of Atomic Scientists said ...

With the war on Iran, Ukraine, AI and climate breakdown increasing the likelihood of a nuclear war, the clock stands closer to midnight than ever before. So who decides how many seconds we have left – ...

L-R: Dr Ashby Hilton, Dr Elizaveta (Liz) Klantsataya and Dr Sarah Watzdorf working on a prototype of a next-generation portable atomic clock. Time is almost up on the way we track each second of the ...