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The hidden pockets of the universe where the future can cause the past
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The hidden pockets of the universe where the future can cause the past

New Scientist · May 18, 2026, 9:00 AM · Also reported by 2 other sources

Why this matters: new research or scientific developments with potential real-world impact.

Inside some very special black holes, there may be a boundary called a Cauchy horizon. Columnist Leah Crane explores the place beyond which physics breaks and anything is possible

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