Today’s state-of-the-art optical clocks offer accuracy to 18 decimal places, which is roughly equivalent to measuring the ...

More than 14 U.S. Army and Marine divisions never landed on X-Day of Operation Downfall, the planned invasion of Japan to end ...

Physicists at the University of Toronto have developed technology that could power a new generation of optical atomic clocks ...

HIROSHIMA— Local officials plan to carry out the city’s first DNA analysis on remains from the atomic bombing, seeking to ...

As if timekeeping in the U.S. wasn’t already pretty accurate, the U.S. Department of Commerce’s National Institute of Standards and Technology (NIST) just declared a new atomic clock, the NIST-F2, to ...

A time crystal that beats to the rhythm of both order and chaos has revealed a new way in which matter can keep time. New ...

One set of the unclaimed remains placed in the vault under the Atomic Bomb Memorial Mound at the Peace Memorial Park in Hiroshima, western Japan, will undergo DNA profiling to identify the individual, ...

The declaration wrapped up the five-day 63rd Pugwash Conference on Science and World Affairs in the atomic-bombed city.

The total number of officially recognized Hiroshima and Nagasaki atomic bomb survivors has fallen below 100,000 for the first time since the certification system began in fiscal 1957, government data ...

A former prime minister who heads the main opposition Constitutional Democratic Party of Japan on Saturday called for the country's non-nuclear weapons principles to be upheld. Yoshihiko Noda's ...

A pulse of light sets the tempo in the material. Atoms in a crystalline sheet just a few atoms thick begin to move—not ...

Head of the Atomic Energy Organization of Iran Mohammad Eslami lambasted the International Atomic Energy Agency (IAEA) for ...