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light-year - Students | Britannica Kids | Homework Help
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eSky: Light Year
If we use 1 millimeter to represent 1 light-year, how large in diameter is the Milky Way galaxy? a.100 millimeters b.100 kilometers c.1 kilometer d.100 meters e.1 million millimeters | Homework.Study.com
What Is a Light-Year? | NASA Space Place – NASA Science for Kids
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Light Years | PBS LearningMedia
What is a light-year? – Exoplanet Exploration: Planets Beyond our Solar System
What is a light-year?
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What is a light-year and how is it used??
What Is a Light-Year? | NASA Space Place – NASA Science for Kids