Is our universe infinite or does it have a boundary? And if yes what is behind that boundary? The universe is "everything that exists" by definition. Together with professor Harald Lesch today we measure the size of the universe. (from: "Faszination Universum – Ohne Limit")

This video is produced by the German television channel ZDF.

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Complete documentary "Faszination Universum – Ohne Limit" ("Fascinating Universe - Without Limits", German only):
https://www.zdf.de/dokumentation/terr...

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