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PBS Space Time
The Edge of an Infinite Universe
Season 5
Episode 17
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.
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13:01
We may have detected the signature of alien life - Venusian life -for the first time.

14:39
Can solving quantum cryptography prevent us from digital collapse...and are we close?

10:47
Fundamental kinks in the universe may evolve into complex structures within the stars.

13:29
We explore if chasing the beauty in physics is an actual good course of action.

11:13
This how we finally figured them out.

13:42
We discuss the incredibly ambitious plans for future colliders.

10:41
We take a look at the dysfunctional stellar relationships among the stars.

11:22
The boundary between neutron stars and black holes promises to reveal secrets of both.

12:43
The most precious substance in our universe is not gold, nor oil. It's antimatter.

11:32
Despite what the cosmic censorship hypothesis suggests, naked singularities may exist.

13:12
It's very hard to study black holes but studying black hole analogies makes it easier.

14:34
Sir Roger Penrose's Conformal Cyclic Cosmology hypothesis.