Tiny and beautiful Once a year, the SNI invites members of the network to submit the most beautiful images they’ve obtained from the nano and microworld for a chance of winning the Nano Image Award. The SNI team uses these “works of art,” which can only be seen using microscopes, to encourage an interest in the nanoworld. One of the winning images in 2023 was that of an X-ray condenser viewed under an optical microscope. The condenser’s complex geometry diffracts visible light and reveals a spectrum of brilliant colors, with each hue representing a speci昀椀c wavelength. With a diameter of 2 mm and lines with a width of down to 50 nm, the device was developed by researchers at PSI for an X-ray microscope at the Hereon research center in Germany. (Image: Peng Qi, Joan Vila-Comamala, Di Qu, Paul Scherrer Institute) SNI Annual Report 2023 53