M microscopy (Electron Microscopy) is a powerful imaging technique that uses a beam of electrons instead of light to achieve extremely high resolution. Unlike traditional optical microscopes, EM microscopy allows researchers to visualize structures at the nanometer scale, making it essential in fields such as materials science, nanotechnology, biology, and medicine. It provides detailed insights into cell ultrastructure, viruses, and even atomic arrangements in metals and semiconductors. With advanced imaging modes like scanning and transmission electron microscopy, EM microscopy continues to transform scientific research by uncovering details that remain invisible under conventional microscopes.