Carbon Nanotubes (IMAGE) NASA/Goddard Space Flight Center Caption Thousands of times smaller than the average human hair, carbon nanotubes are extremely long and thin yet strong, making them a key nanotechnology structure. Credit NASA Ames Research Center Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.