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Season 2015 · Episode 7 of 43 Aired Mar 25, 2015

Cosmic Microwave Background Explained

Wed, Mar 25, 2015
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Next: S2015 E8

HAS SPACE ALWAYS BEEN BLACK? As long as we've been around, YES. But the universe gets much more exciting, AND much BRIGHTER, as we start winding our clocks back to the early days of the universe. Near the beginning of the universe, when space was rapidly expanding, that dark night sky we know so well as actually…ORANGE! But why? Did the lights just go out, or did something more spectacular happen?

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Wed, Mar 25, 2015

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PBS Space Time

433 episodes

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S2015 · E7

in PBS Space Time