However, aluminum is tricky. The element is difficult to measure with lasers, as well as cool to absolute zero. But when ...

There's a new record holder for the most accurate clock in the world. Researchers at the National Institute of Standards and ...

The laser beam traveled 3.6 kilometers (over 2 miles) via fiber optic links to NIST, where a frequency comb (acting as a “ruler for light”) allowed the aluminum ion clock’s laser to adopt its superior ...

The National Institute of Standards and Technology (NIST) has set a new record by developing the world's most accurate clock, ...

For nearly a century, scientists around the world have been searching for dark matter—an invisible substance believed to make up about 80% of the universe's mass and needed to explain a variety of ...

In the final analysis, by showing that 10 heterogenous clocks across three continents could agree with each other to within a ...

He worked to develop an atomic clock that is essential to global positioning systems and helped confirm a rare state of ...

As Earth spins faster than it has in decades, atomic clocks are catching the difference, and shorter days are on the horizon.