What is the universe expanding into? - Sajan Saini
1,795,151 Views
4,664 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.
Whereas one class of speculative cosmology theories, such as eternal inflation, may be tested by fine astronomy measurements of heavenly phenomena such as the Cosmic Microwave Background, theories such as brane cosmology are tested by both astronomy and high energy physics experiments. Given the origins of brane cosmology, does the telescope or the particle accelerator seem the more instrumental tool to test theoretical predictions? Why?
Sign in to answer questionAbout TED-Ed Animations
TED-Ed Animations feature the words and ideas of educators brought to life by professional animators. Are you an educator or animator interested in creating a TED-Ed Animation? Nominate yourself here »
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
