For example, Newton's law of gravity is at the heart of all kinds of heavenly motion, everything from the phases of the moon, seasons of the year and drifting of the stars and galaxies. The nice thing about Astronomy, that it explains the subject in simple terms about the vast universe. Sun is one of 100 billion stars in our galaxy called the Milky way. The Milky way is one of the billions of galaxies in the universe. Galaxies appear to be grouped as Clusters which form Super clusters.
Super clusters have filament like long structures in the background of possibly vast empty space.