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, ...

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

Atomic clocks’ accuracy and stability have already ... Mindy Weisberger is a science writer and media producer whose work has appeared in Live Science, Scientific American and How It Works ...

R esearchers have developed a new approach in optical atomic clocks that brings forth a major goal in science: the redefinition of a second. The fundamental unit of time could soon be based on ...

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

The nucleus of an atom is now the modern version of sand flowing through an hourglass. Researchers have spent 15 years trying to increase accuracy in timekeeping. The U.S. standard currently ...

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

“We’re exploring the frontiers of measurement science,” Ye said ... able to theorize about until now.” The average atomic clock today operates at microwave frequencies, NIST states ...

the Bulletin of the Atomic Scientists moved the metaphorical clock up one second to 89 seconds before midnight, the theoretical doomsday mark. "It is the determination of the science and security ...

WASHINGTON, Jan 28 (Reuters) - Atomic scientists on Tuesday ... chair of the Bulletin's Science and Security Board. "Setting the Doomsday Clock at 89 seconds to midnight is a warning to all ...