* Nuclear Fusion in the Core: The energy is generated in the Sun's core through nuclear fusion, where hydrogen atoms fuse into helium.
* Radiation Zone: The energy then travels outward through the radiation zone, a region of extremely dense plasma. This energy is carried by photons (light particles) that bounce around and get absorbed and re-emitted, making the journey very slow.
* Convection Zone: After the radiation zone, the energy enters the convection zone. Here, hot plasma rises and cooler plasma sinks, creating a pattern of circulation that helps transport energy outward.
* Photosphere (Surface): Finally, the energy reaches the photosphere, the visible surface of the Sun.
Estimated Time: The entire process from the Sun's core to its surface takes hundreds of thousands to millions of years. This is because the photons travel extremely slowly through the dense radiation zone, taking a very long time to make their way to the surface.
Fun Fact: The energy we receive from the Sun today was actually generated in the core long before we were even born!