  We establish the global-in-time existence of solutions of the Cauchy problem
for the full Navier-Stokes equations for compressible heat-conducting flow in
multidimensions with initial data that are large, discontinuous, spherically
symmetric, and away from the vacuum. The solutions obtained here are of global
finite total relative-energy including the origin, while cavitation may occur
as balls centred at the origin of symmetry for which the interfaces between the
fluid and the vacuum must be upper semi-continuous in space-time in the
Eulerian coordinates. On any region strictly away from the possible vacuum, the
velocity and specific internal energy are H\"older continuous, and the density
has a uniform upper bound. To achieve these, our main strategy is to regard the
Cauchy problem as the limit of a series of carefully designed initial-boundary
value problems that are formulated in finite annular regions. For such
approximation problems, we can derive uniform {\it a-priori} estimates that are
independent of both the inner and outer radii of the annuli considered in the
spherically symmetric Lagrangian coordinates. The entropy inequality is
recovered after taking the limit of the outer radius to infinity by using
Mazur's lemma and the convexity of the entropy function, which is required for
the limit of the inner radius tending to zero. Then the global weak solutions
of the original problem are attained via careful compactness arguments applied
to the approximate solutions in the Eulerian coordinates.
