The European Space Agency’s ACES mission could ultimately pave the way for a global network of atomic clocks that make these ...

The new clock is so reliable that it would be off by less than a second if it had started running 100 million years ago, ...

Atomic-scale imaging emerged in the mid-1950s and has been advancing rapidly ever since—so much so, that back in 2008, physicists successfully used an electron microscope to image a single ...

Lasers trap a cloud of strontium atoms inside an "optical lattice" in the world's most accurate atomic clock The JILA team’s new atomic clock ups the accuracy to record-breaking levels using a ...

Clocks on Earth are ticking a bit more regularly thanks to NIST-F4, a new atomic clock at the National Institute of Standards and Technology (NIST) campus in Boulder, Colorado. NIST-F4 measures an ...

THE theory of atomic structure has, during the past few years, reached a stage of sufficient success and stability for it to be possible to describe many of its features in a simple manner.