Freethinkers How far exactly is a light year Light travels 186,000 miles per second. There are 60 seconds in a min… | Travel light, Seconds in a year, Light year
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What Is the Speed of Light?
The speed of light in a vacuum is 186,282 miles per second (299,792 kilometers per second), and in theory nothing can travel faster than light. - Did You Know?
How Fast is the Speed of Light? | Facts, Information, Anything Faster?
How far is a light-year? | Astronomy Essentials | EarthSky