Using the TEAM electron microscope at the Molecular Foundry, scientists have gained a never-before-seen view of nucleation, capturing how the atoms rearrange at 4D atomic resolution. Nucleation is an unsolved problem in many fields, but this research could enable pathways to control the process. https://newscenter.lbl.gov/2019/06/26/scientists-capture-atomic-motion-in-4d-for-the-first-time/