Pentacene

This is ostensibly the first direct image of the atomic structure of a molecule ever recorded, created in 2009 by IBM using atomic force microscopy. While previous images have captured the electron clouds of individual atoms, this was the first image to show subatomic molecular bonds between atoms. In this case, the bonds between carbon atoms and between carbon and hydrogen atoms are clearly visible, empirically demonstrating the hexagonal nature of aromatic hydrocarbons.

This image was produced by IBM Rearch. As Wikipedia says:

"This image is a faithful digitisation of a unique historic image, and the copyright for it is most likely held by the person who created the image or the agency employing the person. It is believed that the use of this image may qualify as fair use under United States copyright law.