These images, taken with an electron microscope, show the patterned nanotubes that would operate as electron emitters in a new instrument now being developed for analyzing extraterrestrial samples. The right image is a close-up of one of the bumps. Credit: NASA
An ultra-dark coating comprised of nearly invisible shag rug-like strands made of pure carbon is proving to be highly versatile for all types of spaceflight applications. In the most recent application of the carbon-nanotube coating, optical engineer John Hagopian, a contractor at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, and Goddard scientist Lucy Lim are growing an array of miniscule, button-shaped bumps of multi-walled nanotubes on a silicon wafer...
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