Nuclear clocks are a technology researchers have been working toward for decades. New research in theoretical physics brings them closer to reality.

In 2008, a team of UCLA-led scientists proposed a scheme to use a laser to excite the nucleus of thorium atoms to realize extremely accurate, portable clocks. Last year, they realized this ...

Thorium-229's unique nuclear transitions may lead to a revolutionary nuclear clock, with enhanced stability and sensitivity for probing fundamental physics.

Denny Chimes is now synced to atomic clock precision, making the clock tower more accurate than ever. Thejesh Bandi, an ...

Scientists have made a major step towards building the world's first practical nuclear clock.In a study published today in Nature, the team ...

Vladan Vuletić with members of his Experimental Atomic Physics group. From left to right: Matthew Radzihovsky, Leon Zaporski, Qi Liu, Vladan Vuletić, and Gustavo Velez. Every time you check the time ...

Time moves differently on Mars. NIST physicts recently calculated exactly how fast each second passes on Mars. And if humans want to explore the solar system, every microsecond counts.

A revolutionary achievement could pave the way for smaller, more efficient nuclear clocks. Last year, a research team led by UCLA achieved a milestone scientists had pursued for half a century. They s ...