Space and Shadows
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On reaching Earth, light particles create a temporal chain of connections that links us and everything else on Earth, including our present, to the distant past they traveled from.
According to NASA, after a photon leaves the sun’s core, it moves outward to begin its long journey. Any individual photon takes more than 100,000 years to travel from the core to the outer border of the radiative zone because it bounces up and down rather than moving in a straight line. Then it takes 8 minutes to travel from the surface of the sun to Earth. 100000 years ago, Earth was going through a period of ice age.
When these light particles are absorbed by the surfaces they encounter (including us), they create projected shadows on adjacent surfaces. The subsequent created shadows, that move and stretch with the Earth’s rotation, also connect us and everything else to Earth, its cycles and, as such, to the sun and the passing of time.
Frederique Jones 