Researchers at Harvard University have made a groundbreaking discovery about growing green algae in conditions that mimic Mars. This innovative experiment opens new doors for future space colonization.
In a recent study published in Science Advances, a team, led by Professor Robin Wordsworth, showed that algae can thrive in a Mars-like atmosphere. They created a unique habitat using bioplastics to simulate low-pressure environments. Mars’ atmosphere is more than 100 times thinner than Earth’s, which makes it hard for liquid water to exist. However, the researchers built a 3D-printed chamber from polylactic acid, a type of bioplastic, allowing them to create a stable environment inside the chamber. This setup protected the algae from harmful UV radiation while providing light necessary for photosynthesis.
The experiment’s success indicates that we could construct sustainable habitats on Mars. Wordsworth highlights an exciting possibility: if these habitats grow algae, that algae could be used to produce more bioplastic. This could lead to a self-sustaining system out in space.
Relying on locally sourced biological materials like algae might make space habitats more eco-friendly and reduce Earth resupply missions. Instead of sending heavy industrial materials, we could use what’s available on Mars.
The algae species used, Dunaliella tertiolecta, is known for its ability to survive extreme conditions, making it ideal for this study. The team’s ability to maintain water stability in these simulated conditions is also promising—it suggests that liquid water could persist on Mars, a vital ingredient for human survival.
Looking ahead, the researchers plan to test their bioplastic habitats in vacuum settings, relevant for possible lunar bases or deep-space missions. They aim to develop closed-loop systems that don’t rely on external resources, making space habitats even more feasible.
As space exploration evolves, the integration of biology with technology could redefine how we think about living on other planets. This research not only paves the way for future space colonization but also ensures that we think about sustainability in every step.
For deeper insights into the potential of bioplastics and algae in space colonization, feel free to explore more about this study at Science Advances.
