Last month, a consortium of 69 scientists from across Europe and Japan completed the largest and most coordinated comparison ...

In the final analysis, by showing that 10 heterogenous clocks across three continents could agree with each other to within a ...

So far, the shortest day ever recorded was July 5, 2024, when Earth rotated 1.66 milliseconds faster than usual. This year, ...

The science behind why the Earth will spin just a little bit faster on July 9, July 22, and August 5, this year.

An attosecond—or 0.000000000000000001 second—is no time at all for a person. That is not so for electrons, atoms and molecules, and laser-wielding scientists are revealing the action ...

“The optical clock community is strongly motivated to obtain the best possible set of measurements before the SI second is ...

First, the capacity to accurately characterize the stability of different clocks using the SDR is demonstrated. Experimental results then establish the ability to steer an oven controlled crystal ...

Quantum sensing specialist Aquark Technologies has completed a second trial of its AQlock atomic clock system, facilitated by the Disruptive Capabilities and Technologies Office (DCTO) of the UK Royal ...

High-performance atomic clocks provide the foundation for precise time measurement. Common high-performance atomic clocks in time-keeping laboratories include hydrogen masers and cesium atomic clocks.

A former intelligence officer's 1980 reflections on selecting Cold War targets are worth revisiting in the wake of the second Trump administration, but perhaps not for the reasons you might imagine.

Time stopped at Gracie Mansion on Monday. We all know Mayor Eric Adams isn’t above hopping onto the latest Instagram trend, as he proved once again this week by posting his “morning routine ...