1. Gravity: Stars are massive balls of gas, primarily hydrogen and helium. Gravity pulls this gas inwards, creating intense pressure and heat at the core.
2. Fusion: The immense pressure and heat at the core force hydrogen atoms to fuse together, forming helium. This process, called nuclear fusion, releases enormous amounts of energy in the form of light and heat.
3. Energy Release: The light and heat generated by fusion travel outward through the star, eventually escaping into space. This is the light we see from Earth.
4. Sustaining the Process: The energy released by fusion balances the inward pull of gravity, preventing the star from collapsing. This process continues for billions of years, providing the star with a continuous source of energy.
In simpler terms: Stars are giant, hot balls of gas that burn fuel through a process called nuclear fusion, which releases light and heat. That's why they shine!
