Science News spoke with a metrologist about the metric system’s latest update, which will help scientists interpret exceedingly big and small numbers.

The metric system's governing body has added some new terms to help describe massive amounts of data. The General Conference on Weights and Measures last week added the prefixes "ronna" and ...

The metric system vs. imperial system debate has raged on for years, but is one truly better? From NASA losing a $328 million ...

The Metric Conversion Act declared the metric system “the preferred system of weights and measures for United States trade and commerce”, but still allowed the use of the current units in all ...

Anyway, some Americans have periodically broached the metric system without success. And in 1975 Congress passed the Metric Conversion Act to increase use of the system and to create a United ...

So why don’t Americans use it? Here’s how the metric system evolved—and why it’s still struggling to gain a foothold in daily life.