UH Scientist Rethinks Microbial Future in Space Travel

Biofilms could pose risks to astronaut health while also serving as powerful tools to sustain life beyond Earth.

Published on Feb. 26, 2026

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A global team of scientists has identified biofilms, a structured community of microorganisms, as a critical factor in the future of human space exploration. University of Houston microbiologist Madhan Tirumalai is part of NASA's Analysis Working Groups (AWG) and co-author of a review paper that examines how biofilms could pose risks to astronaut health while also serving as powerful tools to sustain life beyond Earth.

Why it matters

Biofilms are fundamental for life on Earth, and so they must be fundamental for life in space as well. In spaceflight environments, biofilms may make microbes more resistant to treatment, but they may also become valuable tools for long-duration missions, including therapies to restore microbial balance, advanced drug delivery systems, and plant growth enhancers for space agriculture.

The details

The research team leveraged NASA's Open Science Data Repository to examine how spaceflight factors, such as altered gravity and increased radiation, affect microbial communities and their biofilm-forming abilities. Tirumalai's previous research suggests that genes associated with biofilm formation can mutate or adapt under space conditions, potentially enhancing microbes' ability to form these protective communities. Biofilms have direct links to antibiotic resistance, which is a global problem.

  • The review paper was published on January 22, 2026.
  • In fall 2025, Tirumalai published research examining how bacteria survive in spacecraft assembly clean rooms.

The players

Madhan Tirumalai

A University of Houston microbiologist and a member of NASA's Analysis Working Groups (AWG), who co-authored a review paper on the role of biofilms in the future of human space exploration.

Katherine Baxter

The lead author of the review paper and a research scientist at the University of Glasgow in Scotland.

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What they’re saying

“What effects do the spaceflight factors have on microbial communities and their biofilm-forming abilities? These gaps are important to examine because we need to address them as soon as possible if our dreams of human spaceflight and exploring the frontiers of space are to be fulfilled.”

— Madhan Tirumalai, Research Professor, Department of Biology and Biochemistry, University of Houston (Mirage News)

“Biofilms are fundamental for life on Earth, and so they must be fundamental for life in space as well.”

— Katherine Baxter, Research Scientist, University of Glasgow (Mirage News)

What’s next

The paper's recommendations are based on technologies that are already in development, and the team's findings could help guide the development of biofilm-based technologies for spaceflight, including therapies to restore microbial balance, advanced drug delivery systems, and plant growth enhancers for space agriculture.

The takeaway

Understanding how microbes, particularly in the form of biofilms, respond to space and related conditions is critical for the future of human space exploration. Biofilms pose both risks and potential benefits, and further research in this area could lead to advancements that enable long-duration missions and the expansion of human presence beyond Earth.