A new experiment involving a network of entangled atomic clocks could finally help us test how quantum mechanics fits with ...

While their nuclear clock is still a work in progress, once realized it could transform not only timekeeping but also the study of physics, even affecting how scientists investigate the fabric of ...

A clock built by a team led by researchers at the National Institute of Standards and Technology (NIST) has been estimated to ...

Possibly originating with the English poet Geoffrey Chaucer's "time and tide wait for no man," the idea that time waits for ...

The atomic clock used in modern timekeeping uses lasers to manipulate atoms of cesium-133 along a frigid shaft. Then microwaves blast into a huddled bundle of these atoms, and triggers their ...

If, like me, you can't go a day without making sure your watch is synced to the second, you'll be delighted to learn that a new atomic clock has broken the record with an accuracy of 5.5 x 10⁻¹⁹ – ...

For nearly a century, scientists around the world have been searching for dark matter—an invisible substance believed to make up about 80% of the universe's mass and needed to explain a variety of ...

Researchers have built an atomic clock that is more precise and accurate than any previous clock. For the first time, the clock can detect the effects of gravity predicted by the theory of general ...

The atomic clock is an optical lattice that controls strontium atoms. Photo: K. Palubicki/NIST New clock just dropped, but it’ll only drop a second every 30 billion years while in operation.

Over the last several years, researchers have shown that it is possible to design clocks 1,000 times more precise than the atomic clocks that the original definition of the second is based on ...

It is time to become a nation that forges nuclear agreements, employs diplomacy, recognizes nuclear war is not winnable and works toward disarmament.

The Doomsday Clock of the Bulletin of the Atomic Scientists, set at 89 seconds to midnight, is displayed during a news conference at the United States Institute of Peace, Tuesday, Jan. 28, 2025 ...