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Astronomers Spot Most Distant Galaxy Yet, 13.5 Billion Light-Years from Earth - Scientific American
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SOLVED:Astronomy One light-year is defined by astronomers to be the distance that a beam of light will travel in 1 year (365 days). If the speed of light is 186,000 miles per
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What Is a Light-Year? | NASA Space Place – NASA Science for Kids
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What Is a Light-year? | HowStuffWorks
How long would it take a spacecraft to travel one light-year? - Quora
How Long Would it Take to Walk a Light-Year?
Request] How long for Voyager 1 to travel one light year? : r/theydidthemath
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