Stefan's Law

Stefan's Law states that the amount of energy a blackbody (an idealized object that absorbs all radiation) emits as heat increases with its temperature raised to the fourth power. In simple terms, as an object gets hotter, it releases vastly more energy into space at a significantly increasing rate. For example, doubling an object's temperature makes it emit 16 times more energy. This law helps scientists understand the energy output from stars, planets, and other objects based on their temperature, and explains why very hot objects glow brightly and emit more energy than cooler ones.