(Inside Science) -- Earlier this year, in a nondescript lab at the National Institute of Standards and Technology in Boulder, Colorado, a new clock laid claim to the title of world's most accurate ...

There's a new record holder for the most accurate clock in the world. Researchers at the National Institute of Standards and Technology (NIST) have improved their atomic clock based on a trapped ...

World’s most accurate clock requires a 2-mile laser beam It measure a second down to the 19th decimal. Andrew Paul Jul 14, 2025 4:09 PM EDT ...