Computer simulations of hopfion rings (IMAGE) Forschungszentrum Juelich Caption Computer simulations of hopfion rings of different topological charges Credit Copyright: Fengshan Zheng et al, Nature, 2023, https://doi.org/10.1038/s41586-023-06658-5, CC BY 4.0 Deed Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.