Can GPS function without an atomic clock? Learn how GPS receivers stay accurate using clever math, satellite timing, and error correction. #GPSExplained #AtomicClock ...

One of the biggest challenges in modern physics is uniting quantum mechanics and general relativity. A new experiment may finally provide some answers.

A clock built by a team led by researchers at the National Institute of Standards and Technology (NIST) has been estimated to be 41 percent more accurate than the previous timekeeping record holder.

Daniel Kleppner, an experimental physicist who helped to develop an atomic clock that became an essential part of global positioning systems, or GPS, and who also helped to discover a rare ...

Electron beam method enables precise nanoscale carving and building of copper structures by Ashley Ritchie, Georgia Institute of Technology edited by Sadie Harley, reviewed by Andrew Zinin Editors ...

Many narrators continue to portray Oppenheimer as the father of the atomic bomb. But crediting him was part of a strategy to make nuclear weapons look like an unambiguous force of good—not of evil.

Key TakeawaysScientists have used laser-excited thorium-229 to probe for ultralight dark matter, even without a fully built nuclear clock. Thorium-229’s unique nuclear transition offers up to a ...

A new experiment involving a network of entangled atomic clocks could finally help us test how quantum mechanics fits with general relativity. Quantum mechanics is our best understanding of the ...

Climate change is a slow-moving disaster. We need graphics that capture both its pace and its impact.

On Tuesday, Earth is projected for one of its shortest days since record-keeping began more than 50 years ago.

Earth has been spinning faster for the past few years — a trend that could lead the world’s timekeeping institutions to take unprecedented action.

From when records began (with the invention of the atomic clock) in 1973 until 2020, the shortest day ever recorded was 1.05 milliseconds less than 24 hours, according to Timeanddate.com.