The speed of light is about 186,282 miles per second (299,792 kilometers per second) in a vacuum.
That can be tough to comprehend, so a scientist at NASA created several simple animations to demonstrate light's speed.
His latest video — which he described as "ridiculous" —shows how long it takes light to go from the sun to Pluto in real time.
You'd need most of your working hours to watch the entire movie.
The speed of light is not as fast as you might think.
To underscore this point, a...
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