The Department of Defense has awarded quantum technology firm Infleqtion an $11 million contract to help it speed up the ...

When the clock strikes noon on January 20, 2025, Donald Trump will once again be given launch authority over the U.S.’s ...

In the quest for ultra-precise timekeeping, scientists have turned to nuclear clocks. Unlike optical atomic clocks—which rely ...

Create a Physics World account to get access to all available digital issues of the monthly magazine. Your Physics World ...

Scientists are developing nuclear clocks using thin films of thorium tetrafluoride, which could revolutionize precision ...

Atomic clocks that excite the nucleus of thorium-229 embedded in a transparent crystal when hit by a laser beam could yield the most accurate measurements ever of time and gravity, and ...

The clock's hands inch nearer to the fateful hour, with midnight symbolising a point of no return for our planet. Currently, ...

The first NYE countdown can arguably be traced to the final seconds of 1957, when prominent radio correspondent Ben Grauer counted down the New Year’s Eve ball drop in New York City’s Times Square, ...

Telling time in space is difficult, but it is absolutely critical for applications ranging from testing relativity to ...

An optical lattice clock is a type of atomic clock that can be 100 times more accurate than cesium atomic clocks, the current standard for defining "seconds." Its precision is equivalent to an ...