What Happened Before the Big Bang? | Origin of the Universe Explained

What happened before the Big Bang? 🤯 This is one of the deepest questions in cosmology: Was there time before the Big Bang? Was there a universe before our own? Or did everything simply begin at the singularity? In this full-length video, we dive deep into the scientific theories and mind-blowing ideas that try to explain the origin of the universe — from cosmic inflation and quantum fluctuations to cyclic models, multiverse theories, the Big Bounce, and what physicists like Brian Cox, Stephen Hawking, and Roger Penrose have said about “before the Big Bang.” We also explore: • What the Big Bang theory actually says (and what it doesn’t) • Was there really “nothing” before the Big Bang? • The role of time, space, and quantum gravity in the very beginning • Latest ideas from modern cosmology (2025–2026 updates) Perfect for anyone curious about the universe, black holes, quantum physics, or the ultimate question: What came before the Big Bang? If you love space documentaries, Brian Cox style explanations, or deep science content — hit play and let us know in the comments: What do YOU think was before the Big Bang? 🔥 Timestamps: 00:00 – Intro: The Ultimate Question 02:15 – What the Big Bang Theory Really Means 06:45 – Why “Before” the Big Bang Is So Hard 12:30 – Cosmic Inflation & The Very Early Universe 18:40 – Cyclic Universe & Big Bounce Theories 25:10 – Multiverse & Eternal Inflation 31:20 – Quantum Gravity & The Singularity 38:50 – What Scientists Say Today (Brian Cox & more) 45:00 – Final Thoughts & Mind-Blowing Conclusion Subscribe for more mind-expanding cosmology videos! 🪐 #BigBang #Cosmology #Universe #WhatBeforeBigBang #Space #Science #Astronomy #Physics #OriginOfUniverse #CosmicInflation #QuantumPhysics #BlackHole #StephenHawking #BrianCox #Multiverse #BigBounce #ScienceExplained #SpaceDocumentary #Astrophysics #viralscience