An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Different countries' approaches can lead to different definitions of the kilogram. But NIST is working with our international partners to see how we can close those tiny gaps.
As a summer high school intern at NIST, I got to take a deep dive into one of the ways scientists study space — the absorption and emission of light by matter, known as spectroscopy.
I learned as a young adult not to get attached to material things; they can be gone in an instant. But there were some things I knew no one could take — an education and my love of science.
Remember the social media controversy over the color of a dress? That’s a lighthearted example of how illumination can affect the things we see, but this is serious science.
On his 400th birthday, we celebrate the scientist whose name is the unit of measurement for air, bike and car tire pressure. You should read it. No pressure.
NIST’s research can range from the complex to the downright whimsical, but all the papers published here can trace back to a benefit for everyone in the U.S.
Ahead of World Quantum Day this week, we asked Andrew Wilson, who leads NIST’s Quantum Physics Division, to explain just what exactly quantum science is and why it matters.