Featured in atomic clocks

Researchers just linked three atomic clocks, and it could change the future of timekeeping
How the heck do you even add a leap second to the year?
DARPA Wants Long-Lasting Super-Precise Portable Atomic Clocks
A New Type Of Clock Could Change How We Measure Time
British Military Seeks A Hack-Proof, Quantum Physics-Based GPS
The World’s Most Precise Clocks: 100 Times More Precise Than Cesium Atomic Clocks
This Clock Tracks The End Of The World
New Breed of ‘Nuclear Clocks’ Could be 100 Times More Accurate than Today’s Atomic Timekeepers
When Seconds Count: Today’s UN Debate Could Abolish the ‘Leap Second’
New Strides Toward Better Clocks, Accurate to One Second in 32 Billion Years