The photons stream outward into space at the speed of light, taking just over 8 minutes to reach Earth. Finally, the energy that has survived the arduous journey through the sun's interior reaches the photosphere, the layer we see as the visible surface.
The Core Fusion Process: How the Sun Converts Hydrogen into Energy
For millennia, humanity has relied on this celestial fire for warmth and the growth of crops, yet the mechanism behind its relentless power remained a mystery until the 20th century. It is this conversion of matter into pure electromagnetic radiation that powers the sun and bathes the solar system in light.
The process transforms the lightweight element hydrogen into the slightly heavier element helium, and in doing so, releases a staggering amount of energy in the form of light and heat. This is the solar energy that drives our weather, enables photosynthesis, and defines the climate of our planet.
The Core Fusion Process: How the Sun Converts Hydrogen into Energy
The hydrogen fueling our sun is a primordial remnant from the Big Bang. This is the "blackbody" radiation curve peaking in visible light.
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