What is the universe expanding into? – Sajan Saini

Published on September 16, 2018
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View full lesson: https://ed.ted.com/lessons/universe-expansion-sajan-saini

The universe began in a Big Bang nearly fourteen billion years ago, and has been expanding ever since. But how does the universe expand and what is it expanding into? Sajan Saini explains the existing theories around the Big Bang and what, if anything, lies beyond our universe.

Lesson by Sajan Saini, directed by Wooden Plane Productions.

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