Andrea Richard receives funding from the Department of Energy, National Nuclear Security Administration.

New studies of the “platypus of materials” help explain how their atoms arrange themselves into orderly, but nonrepeating, ...

Hailed as one of the 50 most important women in science, she found ways to study rare radioactive isotopes and advanced the ...

Scientists may have finally uncovered the mystery behind ultra-high-energy cosmic rays — the most powerful particles known in ...

Scientists reveal for the first time the atomic structure of liquid carbon, key to exoplanets and nuclear fusion.

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

This article explores how our understanding of the universe has evolved—from the scale of everyday experience down to the ...

In 1913, Niels Bohr revised Rutherford's model by suggesting that the electrons orbited the nucleus in different energy levels or at specific distances from the nucleus. By doing this, he was able to ...

An element's atomic number defines it. An element with 17 protons will always be chlorine. However an element's mass numbers can vary, which means that it can have different numbers of neutrons. So ...

In the middle of the 20th century, the atom was all the rage. Radiation was the shiny new solution to everything while being similarly poorly understood by the general public and a great deal of ...

Cold atoms could also potentially measure much lower vacuum pressures than ion gauges can. The current lowest pressure they’ve reliably measured is around 10 -9 Pa, and NIST scientists are working on ...

A hidden world of quantum metrologists ensure that everyday devices perform safely and correctly, but their work is never ...