A new glow-in-the-dark plastic design could let scientists watch microplastics move through living bodies for the first time. Credit: Shutterstock Tiny plastic fragments known as microplastics and nanoplastics have spread across the planet. They have been found in deep ocean waters, farmland soils, wildlife, and even inside the human body. Despite their widespread presence, researchers still do not fully understand what happens after these particles enter living organisms. A new study outlines