The National Institute of Standards and Technology last week officially launched a new atomic clock that scientists are calling the most accurate time measurement device in the world. Called NIST-F2, ...

As explained in a mailing list post by Jeffrey Sherman, a NIST supervisory physicist who maintains the institute’s atomic clocks, “The atomic ensemble time scale at our Boulder campus has failed due ...

The Internet Time Service operated by the National Institute of Standards and Technology (NIST) serves much of the Earth, with customers from around the globe. In one month of study alone, just two of ...

BOULDER • Every second in a small laboratory room in Boulder, a green light flashes. Within the webs of yellow wire and shelves of computer systems, this green light represents the passage of time.

For more than a decade, the National Institute of Standards and Technology (NIST) has been unveiling experimental next-generation atomic clocks. These clocks, based on ytterbium, strontium, aluminum, ...

NIST is changing the way it broadcasts time signals that synchronize radio-controlled "atomic" clocks and watches to official US time in ways that will enable new radio-controlled timepieces to be ...

The civilian standard for timekeeping has increased its accuracy by a factor of three with the announcement Thursday by the National Institute of Standards and Technology in Boulder of a new atomic ...