Agnirva Space Premier League - Expedition #31692: Can Algae Clean Water in Space? Exploring Chlorella Vulgaris with Valley Christian High School

Water purification is a cornerstone of sustainable living in space, and the students at Valley Christian High School took an innovative approach by testing Chlorella vulgaris algae for this purpose during Expeditions 47/48. This experiment explored how well this microorganism performs in microgravity, specifically its ability to remove impurities from water.

Chlorella vulgaris is known for its natural water-purifying capabilities. On Earth, it’s used in eco-friendly water treatment systems. In space, where recycling water is essential, algae could offer a biological solution that complements mechanical systems.

The student team designed a payload that exposed Chlorella to microgravity while monitoring growth and water quality changes. Samples were collected before and after flight to evaluate how effective the algae were at removing nutrients and contaminants.

Key questions included: Does microgravity enhance or hinder algae metabolism? Can Chlorella maintain its purification efficacy in space? How can this knowledge be used in closed-loop life support systems?

This experiment highlighted the potential of biotechnology in space habitats and showcased student innovation at its best. It also encouraged a broader conversation on sustainability and eco-engineering beyond Earth.

By participating in such advanced studies, high school students not only learned scientific methods but also contributed to real-world solutions for future space missions.

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