The speed of light is the fastest possible speed by which anything can travel. You cannot go faster than this. Numerically, the speed of light is approximately 186,280 miles per second. Photo by: Brews ohare Creative Commons What makes this quantity important? In astronomy, this is very important as distances are measured in light years. […]
Speed of light - Wikipedia
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Speed of light: How fast light travels, explained simply and clearly
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Speed of light - Wikipedia
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