NASA — Chronicle — World Wire

Scientists have engineered yeast to turn PET plastic and agricultural waste into ingredients for protein-rich, 3D-printed cookies called μBites. Developed partly for NASA’s Deep Sp

Scientists have engineered yeast to turn PET plastic and agricultural waste into ingredients for protein-rich, 3D-printed cookies called μBites. Developed partly for NASA’s Deep Space Food Challenge, the system can produce proteins, fats, vitamins, and even vanilla flavoring from waste materials. Researchers hope the unusual technology could eventually help address both plastic pollution and food insecurity, while also supplying food in extreme environments such as deep-space missions. Full investigative context and verified commentary are published by **Science Daily**. [Read Full Story on Science Daily →](https://www.sciencedaily.com/releases/2026/09/260912220033.htm)