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R.A. Ong (University of Chicago)
Gamma-ray astronomy at very high energies (greater than 100 GeV) is an exciting and rapidly developing field. Discoveries by several ground-based telescopes demonstrate that there are at least three types of astrophysical sources capable of producing radiation at these extreme energies: AGN, SNRs, and pulsar nebulae. The observations have important consequences for our understanding of how these sources operate. Based on the results from these initial instruments, a number of more sensitive telescopes are now under construction. This talk will review the scientific goals for the field, the experimental techniques, and the results to date. It will also discuss the outlook for future progress over the next decade.