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Without a tape measure, how do astronomers measure the distance to a star?
Up Next in Season 1
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S1E18 The Golden Ratio
God has put amazing proportions into sunflowers, seashells, storms and all creation.
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S1E19 Flaming Foods
How does your body burn the food you eat?
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S1E20 Monsters in the Water
What is lurking in the pond?
