The Big Bang Explained Like You're 5

The Big Bang Explained Like You're 5 The Big Bang wasn't an explosion — it was space itself expanding, everywhere, all at once. In this video, we break down what really happened 13.8 billion years ago, using the actual evidence scientists rely on: redshift, the Cosmic Microwave Background, and Hubble's Law. You'll learn: 🌌 Why the Big Bang was an expansion of space, not an explosion in space 🔴 How redshift lets scientists measure the speed and distance of galaxies 📡 The real story of how the Cosmic Microwave Background was discovered (by accident, at Bell Labs in 1964) ⚛️ How nucleosynthesis created the hydrogen and helium that make up almost everything you see in the night sky ✨ What recombination is, and why it marks the earliest point in the universe scientists can actually observe 🔭 Why there's a hard limit to what we can ever see — and why "the edge of the universe" isn't a wall We also clear up the most common misconceptions — like thinking the Big Bang explains where the laws of physics came from, or picturing redshift as objects literally flying away like debris. If you've ever wanted a clear, no-fluff explanation of how scientists actually know the Big Bang happened — not just that it did — this video is for you. 🔔 Subscribe for more deep dives into space, physics, and how the universe actually works. #BigBang #Cosmology #Astronomy #SpaceScience #CosmicMicrowaveBackground #Redshift #Physics #Universe #SpaceExplained #Astrophysics