  We prove the global existence of weak solutions to the Navier-Stokes
equations of compressible heat-conducting fluids in two spatial dimensions with
initial data and external forces which are large and spherically symmetric. The
solutions will be obtained as the limit of the approximate solutions in an
annular domain. We first derive a number of regularity results on the
approximate physical quantities in the "fluid region", as well as the new
uniform integrability of the velocity and temperature in the entire space-time
domain by exploiting the theory of the Orlicz spaces. By virtue of these a
priori estimates we then argue in a manner similar to that in [Arch. Rational
Mech. Anal. 173 (2004), 297-343] to pass to the limit and show that the
limiting functions are indeed a weak solution which satisfies the mass and
momentum equations in the entire space-time domain in the sense of
distributions, and the energy equation in any compact subset of the "fluid
region".
