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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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PPT - The Universe within 500 million light years of Earth (in the center) PowerPoint Presentation - ID:1161763
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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
Exit : Why is a light year called a light year? - ppt download
How Long Does It Take To Travel 1 Light Year | Science Of Space - YouTube
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Light-year - Wikipedia
