The enormous universe holds a complex chronology of celestial bodies. From the first appearance of stars and galaxies billions of years ago, to the ongoing transformation of planets and comets, each celestial object https://www.youtube.com/watch?v=oC9Y_5Aj9Ds&list=PLZyUCudMkqcM4mk4_dH3OwD3Vix21ySC0&index=6&pp=iAQB