With String Theory concepts and experimental data reported in peer-reviewed journals, logical explanations are suggested for some of the most interesting unanswered questions in cosmology, including: -Did our universe exist before the Big Bang? -How did the Big Bang start? -Where did the mass and energy in the universe come from? -How did the basic particles and forces get their attributes? -What started inflation? -What stopped inflation? -Did faster-than-light expansion occur during inflation? -Will our universe expand forever or crunch back? -What are at the centers of galaxies? -Where does the matter and energy in galaxies come from? -Why is there almost no antimatter in our universe? -Why are galaxies shaped the way they are? -Why are clusters of galaxies shaped the way they are? -Do external universes exist? -Why does the nucleus of some galaxies emit intense radiation? -If Quantum Entanglement is real, how does it work? -What is Dark Energy? -What is Dark Matter? -What are the dimensions in String Theory? -Where is your personality located? -Is eternal life possible?