Emilio Segre visual archives This link opens in a new window A collection of more than 30,000 digital images, historical photographs, slides, lithographs, engravings, drawings and other visual materials. The collection is richest in portraits and snapshots of modern American physicists, astronomers and geophysicists but includes many other scientists as well as photos and illustrations of laboratories, telescopes, accelerators and other instruments, objects and places. The archive focuses on American physicists and astronomers of the twentieth century, but includes many scientists in Europe and elsewhere, in other fields related to physics, and in earlier times.