Overview
- The peer‑reviewed study by researchers at The Hong Kong University of Science and Technology was published September 10 and reports a bio‑based printable recipe that solidifies under simulated Martian conditions.
- The mixture uses Martian sand plus gelatin and engineered yeast coated with mussel‑inspired adhesive proteins so that, when printed into a cold, low‑pressure environment, ice sublimates and leaves a porous foam.
- Lab prototypes are wine‑cork‑sized domes that reached about 10 to 12 megapascals of compressive strength, a level comparable to low‑grade concrete.
- Major uncertainties remain because the work was done on Earth: the team has not shown yeast survival under real Martian radiation and atmosphere and estimates initial deployments would still need large amounts of Earth‑supplied materials.
- If it scales, the method could lower energy needs versus regolith‑melting approaches and enable recycling of living yeast for new builds, but next steps include tests of biological survival, cargo needs and larger‑scale printing trials.