What Is The Velocity Of Light Through Spacetime?

The speed of light in space usually denoted c, is a universal physical constant significant in many areas of physics. The exact value is 299792458 metres per second.

The speed of light in a vacuum is 186,282 miles per second which is 299,792 kilometres per second. In theory, nothing can travel faster than the speed of light. In miles per hour, light travels at 670,616,629 mph

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