The enormous universe holds a complex progression of celestial bodies. From the first appearance of stars and galaxies billions of years previously, to the everlasting transformation of planets and meteoroids, each https://www.youtube.com/watch?v=eTWezxJ-lfY&list=PLZyUCudMkqcM4mk4_dH3OwD3Vix21ySC0&index=20&pp=iAQB0gcJCQMKAYcqIYzv