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Ask Ethan: What is the Universe expanding into? - Big Think
5/25/23 at 11:00pm
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Big Think
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Ethan Siegel
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It's been 100 years since we discovered that the Universe was expanding. But if it's expanding, then what is it expanding into?
Science
Universe
Big Think
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https://bigthink.com/starts-with-a-bang/what-universe-expanding-into/
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