The ocean’s missing plastic has been found—transformed into microscopic particles that are now everywhere, from seawater to human bodies. Credit: Shutterstock Scientists have uncovered something surprising in the Atlantic Ocean. The majority of plastic pollution may no longer be visible at all. Instead, it exists as nanoplastics, particles so small they are measured in billionths of a meter. "This estimate shows that there is more plastic in the form of nanoparticles floating in this part of