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Two teams of physicists have made the world’s first nuclear clocks. These radical new devices use fluctuations in the energy ...

We are providing an unedited version of this manuscript to give early access to its findings. Before final publication, the manuscript will undergo further editing. Please note there may be errors ...

We think of atomic clocks as the definitive timekeepers. They are famous for being accurate down to the picosecond.

A clock based on radioactive thorium atoms realises a long-held ambition, demonstrating a technology that could eventually beat the accuracy of today’s best atomic clocks ...

A new notice in Edge warns that Collections will be removed and urges users to export or move their data. After recently retiring the Sidebar app list, Microsoft is now preparing to retire the ...

This site displays a prototype of a “Web 2.0” version of the daily Federal Register. It is not an official legal edition of the Federal Register, and does not replace the official print version or the ...

Ragan Stone, senior vice president of In the Know Experiences, on stage during Global Travel Collection's Arrive 2026. Photo Credit: Global Travel Collection AUSTIN, Texas -- Global Travel Collection, ...

Why are we asking for donations? Why are we asking for donations? This site is free thanks to our community of supporters. Voluntary donations from readers like you keep our news accessible for ...

Sign up for Chalkbeat New York’s free daily newsletter to get essential news about NYC’s public schools delivered to your inbox. Applications opened Tuesday for ...

Mayor Brandon Johnson and the Chicago Department of Housing announced Monday a new program that gives eligible Chicagoans up to $70,000 in financial assistance to buy a new home. The HomeGrown ...