Teachers and parents: you have my authorisation to print this image (in full-color or black-and-white) as a poster for your classroom, your kid's bedroom, your office, your t-shirt or wherever you want, for free. Please don't sell it or use it on products intended for sale. The high-res image is available here.
I am aware that many important scientists are missing from this illustration. The selection process was hard! Please feel free to suggest your favorite famous scientists in the comments below. You can even create your own poster. This one is far from complete; just my little personal attempt at inspiring young girls to study science.