In high-energy nuclear physics, we are probing nuclear matter on the level of its fundamental constituents, quarks and gluons. This is done with experiments located at colliders, in which both protons and heavy nuclei are accelerated and collided. At TAMU, we are interested in studying the governing interaction of nuclear matter, via its phase transition between normal nuclear (hadronic) matter and deconfined quark-gluon matter, the so-called Quark Gluon Plasma. We are also interested in investigating the spin structure of nucleons, i.e. where the spin of the nucleon comes from. Our research is done with the STAR experiment at the Relativistic Heavy Ion Collider (RHIC).