PBS Space Time

tv show

poster for PBS Space Time

409 total episodes

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12 seasons

First Aired February 11, 2015

Overview

Space Time explores the outer reaches of space, the craziness of astrophysics, the possibilities of sci-fi, and anything else you can think of beyond Planet Earth.

Can We Break the Universe? poster unavailable

Can We Break the Universe?

Season 2021 - Episode 2 - 0h 17m

Air Date

January 19, 2021

Overview

Today we’re going to delve into a couple of the most famous paradoxes of special relativity: the Twin Paradox, The Ladder Paradox (aka the Barn-Pole Paradox), and a paradox suggested by our very own viewers, which asks whether a spaceship could wrap around the universe & destroy itself. We’ll explore these paradoxes and see why, against our intuition, the universe really does work in this seemingly nonsensical way. But the point of this episode is to go much further - we’re going to try to break the universe by pushing these paradoxes beyond the limit.