Charles “Chuck” Fadley, a pioneer in x-ray photoelectron spectroscopy, died at his home in Berkeley on August 1. He was a distinguished professor emeritus of physics at UC Davis, and an Advanced Light Source professor and senior faculty scientist at Berkeley Lab. He was 77. https://als.lbl.gov/in-memoriam-charles-fadley-pioneer-in-x-ray-photoelectron-spectroscopy/