PBS Space Time

S5 E17 | FULL EPISODE

The Edge of an Infinite Universe

Have you ever asked “what is beyond the edge of the universe?” And have you ever been told that an infinite universe that has no edge? You were told wrong. In a sense. We can define a boundary to an infinite universe, at least mathematically. And it turns out that boundary may be as real or even more real than the universe it contains.

AIRED: May 14, 2019 | 0:15:16
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