Breakthrough could pave the way for next-generation GPS in drones, smartphones and self-driving cars, scientists say.

It was a small change, but a frightening one. Last month, the "Doomsday Clock" was moved up to 89 seconds, the closest the world has ever been to total annihilation. The Bulletin of Atomic ...

But what’s key here is that researchers have also figured out how to shrink these atomic clocks down to a size that could ...

has developed a technology that makes optical atomic clocks significantly smaller and accessible for more widespread use in society. The core of the new technology are small, chip-based devices ...

In 2001, Japanese physicist Hidetoshi Katori proposed a new type of atomic clock that only loses a second every 30 billion years, a period longer than the current age of the universe. The ...