Speed of sound

Light travels within a vacuum with a speed of precisely 299,792,458 meters each second. According to Space, this equates to a speed of 186,282 miles each second.

Such is known as the equation "c," or a universally unchanging figure for light speed.

Einstein: Light Speed is Constant

Prominent scientist Albert Einstein had a globally known theory referred to as the theory of relativity.

Speed of light in mph

According to the AMNH or American Museum of Natural History, the central premise of Einstein's notions about light is that it is constant. This, in turn, means that the velocity of light in a moving source is the same as if it was from a stationary source.

Regardless of whether its source moves or not, Einstein's theory holds that speed does not change.

Space also notes how this theory holds that nothing across the universe can overtake light in terms of speed.

It also has that as particulate matter gets nearer to the speed of light, its mass ends up infinite. This, in turn, means that the universe's speed limit is that of light.

how fast is lightspeed in m/s

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