Presented here are HR-AFM images of molecules found in the acetone extract of Murchison with potential structures provided beneath. The light gray scale bar shown on the left in each image is 5 Å long. The image grayscale represents the frequency shift (typical range: –10 Hz, …, +5 Hz), where brighter (more positive shift) means a more repulsive force is detected, whereas darker (more negative shift) means an attractive force is acting on the CO probe. The –R side groups of each range from –H, –CH₃, –OH, –NH₂, etc. While key core structures are clear, uncertainty remains about nonplanar side groups at the edges, which appear mostly very bright (partially out of the molecular core plane).