Agnirva Space Premier League - Expedition #31114: Seeing Smells in Space: JAMSS Odor Visualization Experiment

Imagine being able to see odors—literally. That’s the fascinating goal behind JAMSS Odor Visualization, an experiment led by Kuniko Okada from the Japan Manned Space Systems Corporation (JAMSS). Conducted during Expedition 69, this project explored how to visually represent smell molecules in the unique environment of the ISS.

Odors are caused by volatile molecules that interact with our olfactory system. On Earth, gravity influences how these molecules move through air. In space, however, the lack of gravity changes their behavior dramatically. JAMSS sought to capture these changes using innovative sensor and imaging technologies.

The system developed for this experiment detects odor molecules and translates their concentration and movement into visual data. This allows scientists to see how smells behave in microgravity—how they spread, how long they linger, and how they might concentrate in confined areas.

This technology has practical applications on the ISS. Unusual or foul odors can be an early warning sign of system malfunctions or biological issues. Having a tool to visualize these cues can enhance onboard diagnostics and help astronauts maintain a healthier living environment.

Additionally, understanding odor behavior is essential for designing closed-loop life support systems for future space missions. Efficient air purification and environmental monitoring are critical for the well-being of astronauts on long-duration flights.

The project underscores JAXA’s commitment to creating innovative space technologies that address real-life challenges. It also demonstrates how sensory science—usually considered Earth-bound—can take on new dimensions in space.

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