What microscpe has the highest resolution?

The microscope with the highest resolution is the atomic force microscope (AFM), which can achieve resolutions down to the atomic level, approximately 0.1 nanometers. AFM operates by scanning a sharp tip over a sample's surface, measuring the forces between the tip and the sample atoms. This capability allows it to visualize and manipulate materials at an unprecedented scale, making it an invaluable tool in Nanotechnology and materials science.