Supermassive black hole. Elements of this image furnished by NASA.; Shutterstock ID 1756053335; purchase_order: -; job: -; client: -; other: -
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Lab imitations of the unobservable cosmos can be genuinely insightful

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Despite the obvious caveats, physicists are right to use fluids and other physical analogues to search for fresh insights about extreme cosmic phenomena, from black holes to the big bang

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