The European Space Agency’s ACES mission could ultimately pave the way for a global network of atomic clocks that make these ...

From space, the Atomic Clock Ensemble in Space will link to some of the most accurate clocks on Earth to create a ...

The package includes two extremely accurate atomic clocks – a caesium fountain clock and a hydrogen ... Second, ACES timekeeping comparisons will allow us to test Einstein's general theory of ...

MIT physicists froze a mirror using lasers in a daring bid to catch gravity behaving like a quantum force — and it just might ...

With greater control over the quantum realm, physicists are poised to make major leaps in quantum computing, quantum gravity and more.

One of the most profound open questions in modern physics is: "Is gravity quantum?" The other fundamental ...

A particle that lacks the energy to climb a barrier can still appear on the far side, a curiosity known as “quantum tunneling.” ...

Eating This Every Day May Help Fight Dementia, Says New Study This happens because of a relativity theory developed ... They used atomic clocks that “tick” as a single aluminum ion vibrates ...

By using paired, offset optical combs and RF electronics, researchers devised a unique atomic-clock architecture.

The new clock is so reliable that it would be off by less than a second if it had started running 100 million years ago, researchers say.

A new atomic clock at the National Institute of Standards and Technology in Boulder is helping researchers count seconds to ...