Approximately how long does it take for light emitted from the surface of the Sun to reach Earth?
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Since light travels at about 300,000 kilometers per second, and Earth is roughly 150 million kilometers away, solar photons take about 8 minutes and 20 seconds to reach us. Interestingly, the energy itself takes tens of thousands of years to travel from the Sun's core to its surface before it can finally escape into space. Photo: NASA, Wikimedia Commons, Public domain.
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Source: Wikipedia (CC BY-SA)
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