So black you can't see it.

gbjbaanb writes: A British company is developing a new material that’s so black it absorbs all but 0.035 percent of the visual light, making it the darkest material ever created.

Of course, apart from making album covers, it conducts heat 7 times better than copper and is 10 times stronger than steel.

the pictures are the best, it looks like its sitting on some foil, but its grown on the foil which is all crinkled and bent — only people who have seen it say that it looks smooth because so little light is being reflected.