Nanyang Technological University, Singapore (NTU Singapore) scientists have used a classic optical phenomenon known as the Poisson spot to create stable patterns of light called optical skyrmions, which are tiny, swirling configurations in the properties of light—akin to the spikes of a hedgehog.
Source: [Phys.org](https://phys.org/news/2026-06-scientists-optical-skyrmions-century-phenomenon.html)