A microbial duo could help transform Martian soil into sturdy, cement-like building material—making it possible to construct shelters using what’s already on Mars. Even better, the same system might support astronauts by producing oxygen and useful byproducts for closed-loop living. Credit: AI/ScienceDaily.com Ever since humans first walked on the Moon, space agencies around the world have treated the idea of living beyond Earth as a major long term goal. Of the destinations we can