Improved armor protection at less than half the weight of conventional armor. NOt only that but it also is far more effective in radiation shielding. Not just military applications, but in any number of industries, especially in space based applications. Yet another cool advancement with far ranging implications. https://news.ncsu.edu/2019/06/metal-foam-stops-50-caliber/
We are slowly marching along that technological highway and will relatively soon be flying around space. I was born about 500 years too early I think.
