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 ...

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

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

With decades of experience in national security, Jill Hruby joins the Bulletin’s Science and Security Board to help confront ...

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

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 ...

On this week’s “More To The Story,” Daniel Holz from the Bulletin of the Atomic Scientists discusses why the hands of the ...

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