30 Space Myths We Should All Stop Believing

Light Years Measure Time

6. Light Years Measure Time

Light years are often used to denote a vast amount of time but in reality, scientists say that they actually measure distance. According to NASA, a light-year is ‘the total distance that a beam of light assuming that it is moving in a straight line travels in the space of one full year’.

The amazing thing is that light travels at a speed of around 3,00,000 kilometers per second, so we can assume that one light-year is actually 10 trillion kilometers in distance. Light is by far the fastest thing that moves in space.

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