Lorentz Violation and Post-Newtonian Gravity

One possible experimental signature for Planck-scale physics is the discovery of Lorentz- and CPT-symmetry violation. The observable effects at low energies are described by the Standard-Model Extension (SME). This talk focuses on the Riemannian limit of the gravitational sector of the SME. We discuss some of the associated phenomenology in the post-Newtonian regime.