@anselmahornsby7: If space is expanding, what is outside it? A short universe mystery from A Brief History of Time. 宇宙膨胀到哪里去：Expansion does not need an outside container; distances inside space grow. #SpaceTok #PhysicsTok #Cosmology #BlackHole #LearnOnTikTok #SoviAI

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Sunday 30 August 2026 23:06:11 GMT