The Journey of Solar Radiation: From Sun’s Core to Earth’s Surface #3272016 (License: Personal Use)

This infographic illustrates the full pathway of solar radiation: starting with nuclear fusion in the Sun’s core (15 million °C, 500 billion × Earth’s pressure), moving through the radiative and convective zones over ~1 million years, then traveling 149.6 million km to Earth in just 8 minutes. It highlights atmospheric interactions-especially UV absorption by O₂, O₃, H₂O, and CO₂-and explains both beneficial (vitamin D, circadian rhythm) and harmful (skin aging, cancer) UV effects, while noting gamma/X-rays are blocked by the ionosphere.

Used in educational astronomy, climate science, or health websites to explain solar physics, atmospheric filtering, and sun safety; matches user intent for learning about sunlight origins, Earth’s energy balance, or UV protection.