First author Associate PI Jens Bauer presents a material with high optical quality, mechanical resilience, processing ease, and coverable size scale, setting the benchmark for the micro- and nanoscale 3D printing of inorganic solids in a new Cluster publication. The process presented in the paper published in the journal Science represents a breakthrough that enables the evolution of on-chip 3D printing of transparent matter from state-of-the-art organic polymers to resilient optical-grade fused silica with high resolution and excellent mechanical properties. The polyhedral oligomeric silsesquioxane (POSS) glass has numerous potential applications.