This is so inspiring. It has become almost axiomatic that Martian regolith is toxic. [1] This microbe research represents a move in thinking from planetary protection (protecting us from Mars) to In-Situ Resource Utilization (ISRU), using Mars to support us. The microbe turns two liabilities — the high perchlorate ClO4 mineral content and the atmospheric CO2 — into the two necessities for a colony: building material and breathable air.

[1] References:

Davila, A. F., Willson, D., Coates, J. D., & McKay, C. P. (2013). Perchlorate on Mars: a chemical hazard and a resource for humans. International Journal of Astrobiology, 12(4), 321–325. https://doi.org/10.1017/s1473550413000189

Oze, C., Beisel, J., Dabsys, E., Dall, J., North, G., Scott, A., Lopez, A. M., Holmes, R., & Fendorf, S. (2021). Perchlorate and Agriculture on Mars. Soil Systems, 5(3), 37. https://doi.org/10.3390/soilsystems5030037

Perchlorate on Mars – Overview and Implications. (2019). (NASA Technical Report).

Perchlorate-Reducing Biofilms Open a New Avenue for Martian Agriculture. (n.d.). Current Trends in Biotechnology and Bioengineering Sciences, 1(1).

Potential Health Impacts, Treatments, and Countermeasures of Martian Dust on Future Human Space Exploration. (n.d.). Life.