Yeast Cells Under the Microscope
I was looking at some baker's yeast underneath a microscope and managed to get this shot through the eyepiece with my phone. I'm not entirely sure how it managed to have such a dark background (probably a combination of the microscope's diaphragm and my phone's auto white balance), but I think it came out pretty good because of it!
This image is licensed with a Creative Commons Attribution license. I did this for this image (not all of mine, most are all rights reserved), as I believe that scientific knowledge and images are worth sharing with the world; this license means that you are free to use my image in whatever way you want, so long as you give me credit ("Attribution").