13 Most Iconic Science Pictures Ever Taken

9. Robert Hooke's Flea Drawing

Although seemingly unremarkable now, this drawing of a simple flea definitely blew some minds back in the 1600s.

Before in invention of photography or the widespread use of microscopes, the majority of people simply weren't aware of the levels of detail that occurred on these tiny scales. As far as they were concerned, fleas were little more than black dots that made you itchy.

Robert Hooke's book, Micrographia revealed a hidden, miniature world in exquisite detail. It also casually describes distant planets, a wave theory for light, the organic origin of fossils and coins the term "cell" (as in "plant cell" or "skin cell").