How Long Would it Take to Walk a Light-Year?
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Capture 3D - #MetrologyMonday One light-year is about 10 trillion kilometers. The Milky Way is about 100,000 light-years, or 1,000,000,000,000,000,000 km across and would take 200,000 years to travel end-to-end at the
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What Is a Light-Year? | NASA Space Place – NASA Science for Kids
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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