What does a nuclear explosion actually look like? Most people imagine a giant mushroom cloud—but that’s only the final stage. In this documentary, we break down what really happens during the first seconds of a nuclear detonation, from the blinding flash and fireball to the shockwave, thermal radiation, and the massive mushroom cloud that follows. You’ll discover the true scale of a nuclear explosion, why its effects reach far beyond the blast itself, and how modern nuclear weapons compare to those used in history. Using realistic visualizations, scientific explanations, and historical context, this video reveals the physics behind one of the most powerful forces ever created.

Source: This Is What Happens When a Nuclear Bomb Explodes