It doesn’t happen often that the Earth puts timekeepers in their place, but on August 5, 2025, the world is set to do just ...

Once the clock is ready, it will be able to detect incredibly tiny changes in energy, which can reveal things like changes in ...

Scientists propose using quantum-entangled clocks to test how gravity affects quantum mechanics in curved spacetime.

NIST’s ion clock claims record for ‘most accurate in the world’ 23 Jul 2025 In the latest wave of optical atomic clocks, it is accurate to 19 decimal places.

A test using atomic clocks will watch superpositions ride Earth’s curved space-time and see if Einstein can play nice with quantum mechanics ...

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

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.

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.

Eric S. Singer is a high school and university educator and a historian of the Cold War in the United States. He served on the faculty of the University of Baltimore, where he taught about the Cold ...

If, like me, you can't go a day without making sure your watch is synced to the second, you'll be delighted to learn that a new atomic clock has broken the record with an accuracy of 5.5 x 10 ...

On July 14, the National Institute of Standards and Technology (NIST) announced their new and improved optical atomic clock is now the most accurate in the world.