عمومی | New Scientist

Toughest ever heat shields made of springy sponge-like stuff

The first highly compressible yet heat-resistant material for spacecraft heat shields has been developed – and in early tests, it is proving five times more resilient to vibration and shock damage than any previous material.

Heat shield tiles like those used on NASA’s space shuttle , which prevented it from being incinerated on re-entry, were often found to be heavily damaged when the spacecraft landed. This made reuse of the shuttle a slow and expensive business.

The damage was due to the fragile nature of the ultralight, …