Meet the metric system’s newest prefixes: ronna-, quetta-, ronto- and quecto-. Adopted November 18 at the 27th General Conference on Weights and Measures in Versailles, France, ronna- and quetta ...

Yotta (24 zeroes) was the largest prefix in the metric system before the new additions. Now, the Earth's mass can be said to be about 6 ronnagrams rather than 6,000 yottagrams.

In data science, informal prefixes were already starting to become common, leading to the potential for confusion. “From a metrology point of view, this sort of horrified me, ...

Related: Meet the zeptosecond, the shortest unit of time ever measured This is the first time that new prefixes have been added to the metric system since the addition of zetta (10˄21), zepto (10 ...

As the system of prefixes can now encompass a 1 followed by 24 zeroes, most scientists will be happy to use 10 25 and the like for anything bigger. But not college students: a group at the ...