What is the universe expanding into? - Sajan Saini
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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.
Einstein’s equations of General Relativity reveal that within galaxies the force of gravity locally overpowers cosmic expansion, while in the intergalactic void expansion reigns supreme. Recent measurements similar to Hubble’s original observations have revealed the expansion of the universe is accelerating: a mysterious dark energy has been attributed to increasing the rate of expansion, over time. What might this mean for the final fate of galaxies, as the universe continues to expand?
About Space Ed
Space Ed helps you untangle the mysteries of space with the universe’s best videos on everything from Einstein's theory of relativity to what it would take to live on Mars. Brush up on the science, philosophy and mystery of space, because the fabric of the universe is the same fabric that connects us all.
Meet The Creators
- Content Producer Gerta Xhelo
- Editorial Producer Alex Rosenthal
- Producer Agota Vegso
- Music Patrick Smith
- Educator Sajan Saini
- Director Will Mackenzie, Kat Gusarova
- Associate Producer Elizabeth Cox, Bethany Cutmore-Scott
- Fact-checker Brian Gutierrez
