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D. E. Reichart (Caltech)
I review recent, direct evidence for a connection between gamma-ray bursts and supernovae. Given that first light is thought to have occurred at a redshift of z ~15 - 20, I discuss how bursts will be used to probe these very high redshifts in the very near future. Bursts can be used to probe the star-formation history of the universe, to detect supernovae out to redshifts of z \approx 4 - 5, to probe the metallicity history of the universe, to probe large-scale structure, and to probe the epoch of reionization out to redshifts of z \approx 6 - 7.