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IdeaLabs: Sizing Up the Universe
Getting Started

If the Earth is the size of a Brussels sprout, how big is the Sun? If the solar system is the size of a fried egg, how big is our galaxy? In this interactive challenge, you can guess relative sizes in outer space, and then do the math to check your guesses.

You can also see relative distances by using an online map. If the Brussels sprout Earth is in your backyard, how far away is the shrunk-down Sun? Type in your own address to find out!


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