The word "science" brings to mind a wide range of images: white lab coats and microscopes, stacks of textbooks, astronomers looking through telescopes, complex equations written on a blackboard etc. However, although all of those images do reflect on some aspects of science, none of them provides anywhere near a full picture because science is so much more. Science is not simply a collection of facts, but is both a body of knowledge and the process of developing that body of knowledge.
Whichever aspect of science you need to illustrate, Colourbox has the stock photos and vectors that you need. You can find images of body parts in our Anatomy category, depictions of the solar system, moon, planets, sun and stars in the Astronomy category, and all the serious as well as crazy-looking scientists in the chemistry category.