Summary:
- Researchers at Cornell University have developed an "ultrablack" fabric that absorbs 99.9% of light, making it one of the darkest materials on Earth.
- This fabric is made from vertically aligned carbon nanotubes that trap light, preventing it from reflecting back. This gives the material an extremely dark, matte appearance.
- The ultrablack fabric could have applications in scientific instruments, telescopes, and other devices where reducing stray light is important. It could also be used in art or fashion to create unique visual effects.