Why can electron microscopes reveal smaller details than light microscopes?

Electron microscopes can reveal smaller details than light microscopes because they utilize electron beams, which possess significantly smaller wavelengths than visible light.12

In microscopy, the ability to resolve fine detail is fundamentally linked to the wavelength of the illumination source. According to the principles of diffraction, smaller details in an object cause light or electron waves to diffract at wider angles. To reconstruct an image of these fine structures, the microscope's objective lens must be able to collect these diffracted waves. Because electron beams have much shorter wavelengths—often thousands of times smaller than those of visible light—they provide a much higher resolving power, allowing the instrument to capture and resolve details that are far too small to be distinguished by a light microscope.312