Odor Molecules (IMAGE) Salk Institute Caption Scientists have discovered a new way to organize odor molecules based on how often they occur together in nature, and to map this data to discover regions of odor combinations humans find most pleasurable. Circles denote points on the front of the sphere, squares mark points from the back of the sphere. Credit Salk Institute Usage Restrictions With credit and related coverage License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.