A slice through the protostellar object determined by Enzo in (left) temperature and (right) dens ity. Copyright © 2001 Tom Abel; used by permission. The ability of the Enzo code to direct the formation of new mesh as needed by the physical solution is key to its ability to follow developments in a large, nearly isotropic universe that nevertheless ultimately produces very compact objects like stars. Copyright © 2001 Tom Abel; used by permission.