Time feels familiar. It marks every moment of daily life, from the ticking of a wall clock to the changing numbers on a ...

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

World's first thorium-229 nuclear clock shows potential for ultra-precise timekeeping and fundamental physics tests.

Two independent research teams have achieved a longstanding goal in physics: building a working nuclear clock. The devices, ...

For decades, nuclear clocks have existed as one of physics’ most tempting promises. A ...

When it comes to navigation in outer space, keeping precise time is incredibly important, that's why NASA needs to use ...

Imagine you're trying to keep time by listening to a room full of people clapping. If everyone claps randomly, it’s hard to tell the rhythm. But if they clap in sync, the beat becomes clear and steady ...

Most clocks, from wristwatches to the systems that run GPS and the internet, work by tracking regular, repeating motions. To build a clock, you need something that ticks in a perfectly repeatable way.

For many years, cesium atomic clocks have been reliably keeping time around the world. But the future belongs to even more accurate clocks: optical atomic clocks. In a few years' time, they could ...

Vladan Vuletić with members of his Experimental Atomic Physics group. From left to right: Matthew Radzihovsky, Leon Zaporski, Qi Liu, Vladan Vuletić, and Gustavo Velez. Every time you check the time ...