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A light-year is the distance light travels in one year. Light has a speed of about 300,000 kilometers per second, therefore, every light year is about 9.5 x 1012 (9.5 trillions) of kilometers.

A light-year is the distance light travels in one year. Light has a speed of about 300,000 kilometers per second, therefore, every light year is about 9.5 x 1012 (9.5 trillions) of kilometers.

A light-year is the distance light travels in one year. Light has a speed of about 300,000 kilometers per second, therefore, every light year is about 9.5 x 1012 (9.5 trillions) of kilometers.

A light-year is the distance light travels in one year. Light has a speed of about 300,000 kilometers per second, therefore, every light year is about 9.5 x 1012 (9.5 trillions) of kilometers.

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15y ago

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