thermonuclear reaction

A thermonuclear reaction occurs when light atomic nuclei, such as hydrogen isotopes, combine at extremely high temperatures and pressures, releasing a vast amount of energy. This process is the same that powers the sun and other stars. It happens when nuclei overcome their natural repulsion due to positive charges, typically at millions of degrees Celsius. The energy released during these reactions is millions of times greater than that of chemical reactions, making them a potential source for fusion-based power generation on Earth, offering a cleaner alternative to fossil fuels.