  In this contribution we will review our present understanding of the matter
equation of state in the density and temperature conditions where it can be
described by nucleonic degrees of freedom. At zero temperature, all the
information is contained in the nuclear energy functional in its isoscalar and
isovector channels. At finite temperature, particular emphasis will be given to
the specificity of the thermodynamics in the nucleonic regime, with the
simultaneous presence of long range electromagnetic and short range nuclear
interactions. The astrophysical implications of the resulting phase diagram, as
well as of different observables of exotic nuclei on the neutron-rich side,
will be touched upon.
