Mon, 12 May 2025

Mon, 12 May 2025 How to avoid a puncture on the Moon

Giant tyre firms are testing tyres that can survive conditions on the Moon and Mars.
Developing technology for space missions to the Moon and Mars requires the creation of new types of tires that can withstand extreme temperatures, heavy loads, and harsh environments. The challenge is significant, as traditional rubber-based tires are not suitable for these conditions. Michelin, a French tire manufacturer, is working on developing airless lunar wheels made from metal alloys or high-performance plastic. These materials can deform and return to their original shape, making them ideal for space missions. However, the extreme temperatures on the Moon's surface pose a significant problem, as they can cause materials to become brittle. The European Space Agency (ESA) is also working on developing tires for its Mars mission, scheduled for 2028. The agency has identified a material called nitinol, an alloy of nickel and titanium, which has flexible properties that make it ideal for space missions. Other companies, such as Bridgestone, are taking a bio-mimicry approach to developing tires. They have created a model of the footpads of camels, which have soft, fatty pads that disperse their weight on loose sandy soil. Inspired by this design, Bridgestone is using a felt-like material for its tread and thin metal spokes that can flex. NASA is expected to make a decision later this year on which proposal to adopt or combine elements from multiple proposals. Meanwhile, companies like Michelin and Bridgestone are testing their tires in simulated lunar environments. The work on developing space tires has potential applications here on Earth as well. For example, durable bicycle tires made from nickel-titanium alloys could be commercially available soon. The technology also holds promise for other areas, such as motorbike tires and even lunar rovers.
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