The August issue of Scientific American includes an article by Caltech Professor and Nobel Laureate Ahmed Zewail, who is a principal investigator at the Gordon and Betty Moore Foundation-supported Center for Ultrafast Science & Technology at Caltech. “Filming the Invisible in 4D: New Microscopy Makes Movies of Nanoscale Objects in Action” highlights pioneering research methods that integrate time, a fourth dimension, in electron microscopy “movies” of processes at the scale of atoms and femtoseconds. The Center focuses on fundamental studies of molecular complexity, the development of the technology of ultrafast imaging, and its applications to real systems of physical, chemical, and biological function. Outcomes for Gordon and Betty Moore Foundation funding have included the creation and maintenance of the ultrafast imaging facility.

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