Manchester's own piece of Cold War history survives in the form of the Guardian telephone exchange. Also known as 'Scheme 567 ...

Blasts have been heard in Tehran and sirens have sounded in Israel as US president convenes National Security Council.

Benjamin Netanyahu has called on Iranians to “rise up” and overthrow Tehran’s “evil and oppressive regime”. As Iranian missiles rained down on Israel in retaliation for Thursday’s devastating attack ...

The Board of Governors at the International Atomic Energy Agency for the first time in 20 years on Thursday censured ... The official added that the Jordan Armed Forces are operating “around the clock ...

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

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

From space, the Atomic Clock Ensemble in Space will link to some of the most accurate clocks on Earth to create a synchronized network, which will support tests of fundamental physics.

A new atomic clock is one of the world’s best timekeepers, researchers say — and after years of development, the “fountain”-style clock is now in use helping keep official U.S. time.

The National Institute of Standards and Technology's new cesium fountain clock is one of the most precise atomic clocks ever created.

This New Atomic Clock Is So Precise It Won’t Lose a Second for 140 Million Years The new clock doesn't just keep time — it defines it.

US scientists debut atomic clock that stays true for 100 million years straight NIST-F4 is America’s bid for precision timekeeping dominance, accurate to 2.2 parts in 10 quadrillion and critical ...

According to scientists at NIST in Boulder, their newest atomic clock, the NIST-F4, will help track time more precisely and help put global time on a more accurate frequency.