Meet the metric system’s newest prefixes: ronna-, quetta-, ronto- and quecto-. Science News spoke with Richard Brown, head of metrology at the National Physical Laboratory in Teddington, England, ...

Back when I was a Catholic-school kid in northern Wisconsin, my school lessons briefly focused on the metric system. This was in the late 1970s. Along with learning cursive and the referents of rosary ...

Most people think the U.S. never adopted the metric system — but that’s not the whole story. Long before Europe standardized its measurements, America quietly implemented a system based on the very ...

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 "quetta." ...

Now that the United Kingdom is outside the European Union, it’s reviewing thousands of EU rules and regulations to see which it should jettison. Among them is the compulsory use of the metric system ...