The Real Star Wars - The Endless Battles of the Universe - How the Universe Works - Science Channel

This video examines the composition of asteroids, the stellar origins of life, and the evolving state of the universe. It details the threats posed by metallic asteroids, the role of supernovas in creating biological elements, and the gradual darkening of the cosmos due to \"quenching.\" Additionally, it explores dark energy, anomalous supernovas, and future galactic collisions.