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D. Rusin (University of Pennsylvania)
The Cosmic Lens All-Sky Survey (CLASS) is the largest and most successful search for new arcsecond-scale radio-loud gravitational lens systems. The goal of CLASS is to provide the astronomical community with a large and uniformly-selected sample of lenses for use in a variety of astrophysical and cosmological studies.
Here I review the CLASS observational program, and present the final set of new gravitational lenses discovered by the survey. I then describe recent results that use the suite of CLASS lens systems to probe galaxy structure and cosmological parameters.