With the Red Planet located 62 million kilometres away, local resources are the solution. (Image: Canva)
The dream of living on Mars takes an unexpected twist. Scientists suggest future Martian habitats could use human blood as a key ingredient. This idea, while innovative, poses ethical and health challenges for pioneers.
Building with Martian Dust and Human Fluids
Transporting building materials from Earth to Mars is impractical. With the Red Planet located 62 million kilometres away, local resources are the solution. A study by the University of Tehran proposes using Martian regolith, combined with serum albumin from human blood plasma, to create “AstroCrete.”
AstroCrete is a protein-enhanced cement, offering significant strength. Lab tests reveal it is 300% stronger than Martian concrete alternatives. Historical examples, like the Romans using blood in mortar, support the idea’s feasibility.
The concept doesn’t stop at blood. Researchers propose settlers could use urine, sweat, and tears. These fluids contain carbamide, which boosts the binding properties of the cement. This system could allow small-scale construction of durable shelters on Mars.
AstroCrete has practical advantages for Martian settlement.
Resource Efficiency: Avoids transporting heavy materials from Earth.
Adaptability: Relies on settlers’ natural bodily resources.
Strength: Provides durable shelters for harsh Martian conditions.
However, the method has notable downsides. Frequent blood donations could weaken settlers’ health, causing anaemia and fatigue. The ethics of extracting bodily fluids for construction also raise serious questions.
While AstroCrete offers a bold vision, researchers explore other methods. In-situ resource utilisation (ISRU) focuses on extracting water or using Martian sulphur for cement. Bioengineering may involve microbes to create biocement. Robotic systems could 3D print structures with regolith-based compounds.
The study highlights the challenges of settling on Mars. Pioneers may need to sacrifice more than expected to survive. Using bodily fluids to construct homes is innovative but controversial. As humanity inches closer to Mars, the price of survival could be measured in blood, sweat, and tears.