 They use chemical reactions to grow carbon nanotubes caught in an object's surface. So the carbon nanotubes are hollow cylinders and they are made up of carbon atoms. Their walls can be as thin as a single atom. These are really, really tiny. How does the material manage to absorb that much light? So imagine a photon, you know, a particle of light, and this particle of light striking the Vantablack, and instead of bouncing back,