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, ...

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." ...

You know kilo, centi, and milli, but how about ronto? Four new metric prefixes got the official stamp of approval last week at the 27th General Conference on Weights and Measures held at Versailles, ...

Say hello to ronnagrams and quettameters: International scientists gathered in France voted on Friday for new metric prefixes to express the world's largest and smallest measurements, prompted by an ...