The Emergence of Bulges and Disks in the Universe

This thesis makes use of the high resolution imaging data of 44,000 galaxies from the NASA Hubble Space Telescope to explore the distribution and evolution of the stellar mass in the Universe during the last 8 billion years of the cosmic time. Providing one of the largest morphological classification and structural analysis we quantify that the vast majority of the stellar mass is locked in galaxies with a bulge and a disk. We conclude that we are in a transition from a Universe dominated by disk growth, to a Universe in which pseudo-bulges are emerging and spheroids are growing.