This beautiful image reveals the inner workings of the the compound eye of Drosophila melanogaster. You've probably never stared deep into the eyes of a fruit fly. For starters it is practically impossible; unless you have microscopes for eyes getting a view this good isn't going to happen.
The picture, which took first prize in the Huygens Image Contest 2013 for microscopic images, shows cell nuclei stained blue, proteins called cadherin in red and a glycoprotein called chaoptin, found in the photoreceptors, as green. Karin Panser, who took the picture, used the image to discern how flies process visual signals.
Technical aspects asides – it's simply beautiful. [New Scientist]
Image by IMP