Israel has been targeting Iran's nuclear infrastructure, with a key focus on its underground uranium enrichment plants. Its ...

Every clock in your house probably tells a slightly different time. Now picture those clocks as the most precise instruments humanity has ever built, so accurate that they wouldn't lose or gain a ...

A research team led by Prof. Chang Hong from the National Time Service Center (NTSC) of the Chinese Academy of Sciences (CAS) ...

NASA scientists are moving on from typical atomic clocks and using optical light and strontium atoms to build a new future.

They trapped thousands of strontium atoms vertically in grids of laser light. Atomic clocks rely on the steady frequency at which electrons in atoms transition between energy levels. Keeping a ...

Abstract: A modular laser platform for an industry-ready strontium atomic clock is developed. Two approaches to reach strontium wavelengths based on thulium-doped fiber lasers are demonstrated, ...

This property allows atomic clocks to average variations and measure time more accurately than classical systems. In particular, optical lattice clocks, which rely on superposition states in Strontium ...

A huge breakthrough decades in the making was made just a few months ago, and already scientists are realizing its potential: A measurement of the gap between the quantum energy states of a thorium ...

Today’s most precise clocks, known as atomic clocks, use the oscillations of laser light to count time, much like a very fast-ticking pendulum. These oscillations are kept stable by matching them to ...

Scientists at JILA, a joint institution of the National Institute of Standards and Technology (NIST) and the University of Colorado Boulder, have developed an atomic clock with unparalleled accuracy.

New clock just dropped, but it’ll only drop a second every 30 billion years while in operation. That’s right: It’s the most precise, accurate clock yet built. The timekeeping device was ...