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 ...

For nearly a century, scientists around the world have been searching for dark matter—an invisible substance believed to make ...

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

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

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 ...

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

The science behind why the Earth will spin just a little bit faster on July 9, July 22, and August 5, this year.

Scientists anticipate that Earth's rotation will quicken enough to create three shorter days between July and August, starting Wednesday, July 9.