This page was taken from here, a NASA site.
The Scale of the Universe (1920); Curtis, Shapley
The Distance Scale to Gamma-ray Bursts (1995); Paczynski, Lamb
The Scale of the Universe (1996); Tammann, van den Bergh
The Nature of the Universe (1998); Peebles, Turner
Each debate has been held in April in the Baird auditorium of the Smithsonian's Museum of Natural History, the site of the original Shapley - Curtis debate. This delightful auditorium's general appearance has remained remarkably constant since the 1920s. Its large, central ceiling electrolier is the debate series logo used above.
These pages feature background information, educational material, and published proceedings for each debate. Information on future debates will also be made available here.