Algae as 3D printing ink could provide solutions for Mars colonization

In Texas, 3D Print reports a master’s student has submitted a concept to the Sasakawa International Center for Space Architecture that is getting a lot of attention: algae-based ink to 3D print habitats for living on Mars. Rather than relying on crops, algae which can be grown without soil can be used not only to print building materials for long-term use in harsh conditions but also for clothing and many other basic essentials. At the same time, algae’s use of CO2 and production of oxygen as a byproduct will facilitate the air required for breathing on Mars.