Scientists at ETH Zurich have created a remarkable new material: glow-in-the-dark wood infused with bioluminescent fungi. By integrating Armillaria mellea—a type of fungus known for its natural greenish glow—into wood structures, researchers have developed a sustainable lighting solution that requires no electricity, batteries, or artificial components. The wood absorbs light during the day and emits a soft glow at night, making it both energy-efficient and visually captivating. This innovation could revolutionize urban infrastructure by providing low-impact, renewable lighting for streets, parks, and pathways. It also opens up new possibilities for eco-friendly architectural design, where biological components enhance the functionality of building materials. As cities search for greener alternatives to cut emissions and light pollution, glowing wood could soon become a beacon—literally—of sustainable innovation. #Bioluminescence #GlowInTheDark #SustainableDesign #UrbanInnovation #FungalEngineering