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Is the Universe infinite - or could there be an edge?

Many theories for what could be beyond the Universe are truly mind-bending. Cosmologist Andrew Pontzen from University College London explores some possibilities and looks at whether there's any way humans could exist beyond the hypothetical edge.

Digital producer: Jack Burgess
With thanks to cosmologist Dr Andrew Pontzen (University College London)

(Image: A visual of the Universe Credit: 成人快手.)

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