As astronauts prepare for missions to Mars, they will require an extensive supply of resources. However, the cost of launching cargo into orbit is already exorbitant, reaching thousands of dollars per kilogram, and transporting it to the Martian surface could escalate to millions. To address this challenge, scientists are exploring methods to create self-sustaining colonies on Mars, particularly regarding food production. One significant hurdle is the Martian soil, or regolith, which is severely lacking in essential nutrients, making fertilizers necessary for plant growth. Researchers in Germany have demonstrated that it is feasible to generate fertilizer on Mars itself using cyanobacteria. These microorganisms were cultivated in a controlled environment that mimicked Martian conditions, utilizing a regolith substitute along with carbon dioxide and water. The biomass produced was then converted into a nutrient-rich solution containing nitrogen and phosphorus. In laboratory trials, this fertilizer was used to cultivate duckweed, an aquatic plant popular in Southeast Asia. Remarkably, from just 1 gram of dried cyanobacteria, approximately 27 grams of fresh, edible biomass was obtained. Additionally, this process generates methane, a potential fuel source. "Picture a vegetable garden on Mars that relies solely on local resources—without the need for imported soil, fertilizer, or water," stated Tiago Ramalho, the study's lead author. Would you consider eating vegetables grown on Mars?
Informational material. 18+.
