Scientists want to 3D print houses on Mars with the help of yeast

Scientists have developed a method to 3D print houses on Mars using a combination of Martian rocks and Earthly ingredients, including gelatin and yeast. The material, called a living building material, is strong enough to support structures on Mars, with a compressive strength comparable to low-grade concrete. The process involves freezing and drying the mixture under simulated Martian conditions, creating a porous foam structure. The material has been tested in Earth-based conditions and shows promise for future Martian construction. The research, published in the journal Chem Circularity, highlights the potential for a circular economy on Mars, where the yeast can be recycled and regrown. The team is unsure if the material can survive actual Martian conditions, but they are confident in scaling the technology. The success of the material depends on advances in rocket technology and the availability of Earthly ingredients. The study suggests that biology could play a significant role in future Martian engineering.

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