The Origin and Journey of Solar Radiation Deep within the sun, nuclear fusion reactions convert hydrogen into helium, releasing an immense amount of energy in the form of gamma rays. High-energy ultraviolet (UV) radiation, for instance, is largely absorbed by ozone in the stratosphere, protecting life on the surface from its harmful effects.
Energy Transfer Through the Vacuum of Space
Absorption occurs when the material’s atoms absorb the photon’s energy, causing molecules to vibrate more rapidly. Dark-colored surfaces, such as asphalt or forests, absorb a greater portion of incoming radiation, while light-colored surfaces, like snow or sand, reflect more.
How Sunlight Travels Through Space Unlike sound, which requires a medium like air or water to propagate, solar energy travels through the vacuum of space via electromagnetic waves. Photosynthesis: The Biological Conversion.
Energy Transfer Through the Vacuum of Space
From this luminous surface, the photons are finally released into space, taking approximately eight minutes to traverse the 93 million miles to Earth. Conversion of Light into Heat The most immediate and universal interaction of sunlight with the Earth is the conversion of photons into thermal energy, or heat.
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