Mars’ thin atmosphere, dominated by carbon dioxide (CO2), poses a significant challenge for potential human settlers. With oxygen constituting a mere 0.16% of its air, how will astronauts breathe?
NASA’s strategy involves the In Situ Resource Utilization (ISRU) principle, focusing on local resources. One notable initiative is MOXIE, onboard the Perseverance rover. This prototype has produced roughly one-seventh of a human’s daily oxygen needs through an electrochemical process. NASA views these results as a promising start.
Recent research from the University of Surrey introduced the Chroococcidiopsis cubana bacteria, a photosynthetic extremophile. This bacterium consumes CO2 and releases oxygen, suggesting its potential in Martian adaptation, possibly through a bio-coating mechanism.
Other approaches include extracting oxygen using plasma, a high-energy ionized gas. As diverse solutions emerge, the race to ensure breathable air on Mars continues.
