Agnirva Space Premier League - Expedition #31511: Can Metal Rust in Space? Israeli Students Investigate Microgravity Corrosion

Rust is something we typically associate with moisture and oxygen on Earth. But what happens to metal in the vacuum of space? That question inspired students from Atidim High School in Holon, Israel, to create the NanoRacks-Rust Development experiment, which launched aboard the ISS during Expeditions 39/40 and 41/42.

The students, guided by their teachers and in collaboration with the Lowell Center for Space Science and Technology, aimed to understand whether and how rust can form on metal objects in microgravity. This topic is highly relevant for space engineering, where long-term equipment durability is essential.

To test their hypothesis, the students prepared samples of metal and exposed them to controlled humidity and oxygen levels inside sealed containers. These were then sent to the ISS via a NanoRacks platform. Astronauts monitored and documented the metal surfaces during the mission.

The unique environment of space—with its low gravity, radiation exposure, and limited moisture—provided a fascinating backdrop to study chemical reactions like oxidation. Would rust still develop? Would it behave differently?

Early results indicated that oxidation can occur even in space, though the rate and pattern may differ from Earth-based processes. Understanding this can help engineers develop better materials and coatings for spacecraft, satellites, and even space stations.

This student-led initiative served not only as a scientific investigation but also as a remarkable educational experience. It engaged young minds in experimental design, hypothesis testing, and global scientific collaboration. It also illustrated how curiosity-driven projects can contribute to real-world space challenges.

The experiment highlights the importance of material science in the space age and the role of student inquiry in advancing knowledge.

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