NIST restored the precision of its atomic clocks after a power outage caused by a power outage disrupted operations. Discover ...

We’re once again approaching the annual resetting of the Doomsday Clock. Last January, the Science and Security Board of the ...

A destructive windstorm disrupted the power supply to more than a dozen atomic clocks that keep official time in the United ...

Time appeared to skip a beat last week when some of the world’s most accurate clocks were affected by a wind-induced power ...

Officials said the error is likely too minute for the general public to clock it, but it could affect applications such as critical infrastructure, telecommunications and GPS signals.

Abstract: This paper presents the development of a MEMS-based reflection-type vapor cell combined with metasurfaces, which function as essential optical components for a microfabricated atomic clock.