However, when Erbacher looked at skin tissue under the microscope, he noticed that nerve fibers ... state-of-the-art imaging strategies that zoom deep inside cells to bring fine structures into view.

Our skin supports a wide variety of life, including fungi, tiny mites in our eyelash follicles, and several types of bacteria. Here is a microscopic view of these tiny creatures from the documentary ...

Usually, we can't see any of this. Read more: The best microscope photos of the year reveal a strange and hidden universe in astonishing detail For the 45th year of the contest, four judges ...