The discovery of the strange quark dramatically enhanced the richness of light quark baryon spectroscopy, adding seven hyperons, the lambda, three sigmas, two cascades, and the omega minus to the family of the familiar two nucleons. Although it spawned new fields of physics research, open flavor physics, and hypernuclear physics, among others, our understanding of the elementary hyperons themselves has been very limited. Unlike the nucleons, we do not know much about the quark-gluon structure of the hyperons. Using the Cornell Electron Storage Ring and the CLEO-c detector, we have made the first measurements of inclusive and exclusive production of all hyperons in electron-positron annihilation, and measured their electromagnetic form factors for large timelike momentum transfers. These measurements reveal new features of the internal structure of hyperons, including diquark correlations, as successively one, two, or three up and down quarks in the nucleons are replaced by strange quarks.
