Eddington's solar model

Eddington's solar model explains the Sun’s energy generation through nuclear fusion, primarily converting hydrogen into helium in its core. This process releases a tremendous amount of energy, which radiates outward as light and heat, keeping the Sun hot and shining steadily. Eddington proposed that the balance between gravity pulling inward and pressure from nuclear fusion pushing outward maintains the Sun’s stability. His model helped scientists understand how stars produce energy over long periods and laid the groundwork for modern stellar physics.