Scientists are developing nuclear clocks using thin films of thorium tetrafluoride, which could revolutionize precision ...

Ekkehard Peik thought it would take only a few months to create the basic ingredients of a radical new clock. That was back ...

In the quest for ultra-precise timekeeping, scientists have turned to nuclear clocks. Unlike optical atomic clocks—which rely ...

Telling time in space is difficult, but it is absolutely critical for applications ranging from testing relativity to ...

The Bulletin of Atomic Scientists, a Chicago-based group, updates the clock yearly, keeping tabs on existential threats ...

Using thorium films just 100 nm thick, researchers were able to detect photon emissions and verify working on the nuclear ...

Atomic clocks that excite the nucleus of thorium-229 embedded in a transparent crystal when hit by a laser beam could yield the most accurate measurements ever of time and gravity, and even rewrite ...

Scientists have taken a big step forward in precision timekeeping by developing a safer and more affordable way to build ...

HIROSHIMA--Passed down from his grandfather, a U.S.-made wooden clock that hangs on a living room wall at Eiji Koizumi’s home here has stood the test of time and an atomic bomb blast. The ...

The Department of Defense has awarded quantum technology firm Infleqtion an $11 million contract to help it speed up the ...