Photography continues to illuminate our world and broaden our understanding of our place in it day after day after day. Don’t believe me? Then take a look at these photographs of human tears, made by artist Rose-Lynn Fisher. She is best known for her photographic work involving microscopes, most notably her 2012 book "Bee," in which she photographed honey bees under intense magnification. During a particularly difficult time in her life, the artist wondered if her tears of grief were biologically different from tears of joy, so she began to photograph them under her microscope. She found that basal tears, the ones produced for simple lubrication, are drastically different than the ones that come about from emotions, which themselves vary dramatically whether they’re from laughter or sorrow. Her project is called "The Topography of Tears," and it’s not only an interesting scientific study, it contains some really fascinating photographs that easily tell this illuminating story. Check out the work via Lifebuzz below, then read an insightful interview with Ms. Fisher at Wired’s Raw File photo blog.