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(Funded by the National Science Foundation and the U.S. Army Research Office)
MIT engineers have developed a material that is 10 times blacker than anything that has previously been reported. The material is made from vertically aligned carbon nanotubes, or CNTs — microscopic filaments of carbon, like a fuzzy forest of tiny trees, that the team grew on a surface of chlorine-etched aluminum foil. The foil captures at least 99.995% of any incoming light, making it the blackest material on record.
