An international research collaboration has mapped the electronic properties of nearly 9,000 atomically thin materials and identified more than 1,600 candidates that could serve as building blocks for new twisted quantum systems. The two studies, published back-to-back in Science, provide a systematic way to search for materials in which twisting could produce new forms of collective quantum behavior. Researchers at the Max Planck Institute for Chemical Physics of Solids in Dresden contributed to turning promising theoretical candidates into crystals suitable for experiments.