Ethan J. Schreier Associated Universities, Inc. Riccardo Giacconi Associated Universities, Inc. Guenther Hasinger Technical University Dresden / DZA Anton M. Koekemoer Space Telescope Science Institute Roberto Maiolino University of Cambridge Alessandro Marconi Universita di Firenze Colin A. Norman The Johns Hopkins University Piero Rosati Universita degli studi di Ferrara Paolo Tozzi INAF - Osservatorio Astrofisico di Arcetri Wei Zheng The Johns Hopkins University