Other
Nikon: Nikon Small World: Photomicrography Competition
Nikon has, for years, sponsored a competition to showcase the work of photographers who take pictures of microscopic subjects. View galleries of winning images for past competitions as you learn about the art and science of microscopy.
University of Hawai'i
Asteroid Heating: A Shocking View
This April 2004 article provides insight and one view into the world of asteroid heating, the age of meteorites and new theories in the changes in shocked and unshocked chondrites. Some great photomicrographs.