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In the new Disney Pixar movie Lightyear, time gets bendy. Is time travel real, or just science fiction?
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Scientists Say: Light-year
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What is a light-year and how is it used??
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Light-year - Wikipedia
What is a light year, and how many Earth years are equivalent to a light year? - Quora
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New planet similar to Earth discovered: How far is 600 light years away? - The Washington Post
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Question Video: Converting between Light-Years and Meters | Nagwa
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What is a light-year?
