Images: Photographic marvels in a petri dish

Paul Marshall of Ottawa, Ontario, took this 30x image of an atypical growth run of carbon nanotubes. He used a Nikon CoolPix E995 camera with a microscope to capture the image, which won second place overall in the competition ($2,000 worth of Nikon equipment).

Photo by Paul Marshall/Nikon

Caption by Jennifer Guevin