1. Hydrogen Fusion: The Sun is primarily composed of hydrogen. At its core, the immense pressure and gravity create temperatures exceeding 15 million degrees Celsius.
2. Atomic Nuclei Collide: This extreme heat causes hydrogen atoms to move incredibly fast and collide with each other with tremendous force.
3. Fusion and Energy Release: When hydrogen nuclei collide, they fuse together to form helium. This fusion process releases a tremendous amount of energy in the form of light and heat.
4. Continuous Process: This fusion process continues constantly, releasing energy that radiates outward from the Sun's core.
The light we see from the Sun is actually a combination of different wavelengths, resulting in the white light we perceive. This light spectrum includes:
* Infrared radiation: We feel this as heat.
* Visible light: The spectrum of colors we see in a rainbow.
* Ultraviolet radiation: This is invisible but can cause sunburns.
In essence, the Sun acts like a giant nuclear reactor, constantly converting hydrogen into helium and releasing energy as light and heat. This process powers the Sun and sustains life on Earth.
