  Nuclear structure and reaction theory are undergoing a major renaissance with
advances in many-body methods, realistic interactions with greatly improved
links to Quantum Chromodynamics, the advent of high performance computing, and
improved computational algorithms. State-of-the-art two- and three-nucleon
interactions obtained from chiral Effective Field Theory provide a theoretical
foundation for nuclear theory with controlled approximations. With highly
efficient numerical codes, tuned to the current generation of supercomputers,
we can perform ab-initio nuclear structure calculations for a range of nuclei
to a remarkable level of numerical accuracy, with quantifiable numerical
uncertainties. Here we present an overview of recent results for No-Core
Configuration Interaction calculations of p-shell nuclei using these chiral
interactions up to next-to-next-to-leading order, including three-body forces.
We show the dependence of the ground state energies on the chiral order; we
also present excitation spectra for selected nuclei and compare the results
with experimental data.
