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What is the universe expanding into? - Sajan Saini

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4,651 Questions Answered

TEDEd Animation

Let’s Begin…

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.

If a so-called “echo” interference effect is observed in the Cosmic Microwave Background, this would strongly support which speculative theory?

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Meet The Creators

  • Educator Sajan Saini
  • Director Will Mackenzie, Kat Gusarova
  • Narrator Bethany Cutmore-Scott
  • Music Patrick Smith
  • Producer Agota Vegso
  • Content Producer Gerta Xhelo
  • Editorial Producer Alex Rosenthal
  • Associate Producer Bethany Cutmore-Scott, Elizabeth Cox
  • Fact-Checker Brian Gutierrez

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