The second lecture “Journey to Illumination: From Cradle to Grave” describes the story of galaxy clustering together with evolution of structures towards their youth and old age. As the galaxies move away from the void centre they become larger and form denser clustering. The loose clusters of not so fully developed galaxies become denser clusters of young evolved galaxies like in the Coma cluster of galaxies which lies several hundreds of millions of light years away from the void. In this lecture we trace the evolution of larger and larger clusters and the development of galaxies with Active Galactic Nuclei. The process of growth of galaxies create many more small
galaxies as ejections occurring from the main structure. These smaller galaxies form the major galactic content of the clusters around the central bodies. The interactions of the luminous galaxies with themselves and the dark galaxies present around create a youthful play ground of the galaxies in the universe. More the structures move southwards the galaxies become more powerful and develop more energetic active galactic nuclei from where smaller galaxies and jets of high energy particles move out in space. When we reach the sky near Centaur and Hydra constellation the
galaxies reach their highest splendour and form densest clusters of evolved active galaxies. These clusters by then form associations with each other and
build even bigger cosmic structure called super-
ean. As one passes the realm of the most luminous universe, the galaxies, after ejections of jets become older and redder. The old galaxies continue the formation of denser clusters and bigger association than the Shapeley super-
which forms at the centre. The centre of the Horologium super-
Thus the darkness from where the galaxies started their journey become their resting place at the end before the cycle repeats again for the next generation.
