Skip to main content
U.S. flag

An official website of the United States government

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.

Search News and Updates

Displaying 3351 - 3375 of 6751

Quantum Spin Squeezing Gets Real

Today's atomic clocks are ridiculously accurate. The best of them tell time so well that if they had been running since the Big Bang, by now they would not have...

Better Accuracy Out of Thin (or Thick) Air

NIST scientists have devised and improved a prototype instrument the size of a loaf of bread that can substantially increase the accuracy of length measurements...

Shedding Light on Dark Matter with SQUIDs

Perhaps fortunately, most folks haven't noticed that 85% of the Milky Way is missing: The kind of familiar, ordinary matter we know – made up of protons...
Was this page helpful?