Deep Astronomy - What is the Universe Expanding Into?

https://www.youtube.com/watch?v=kV33t8U6w28 From Feb 26, 2010. By popular Space Fan request, I offer this video to help answer some of your questions regarding the expanding universe. Many of you consistently ask: If the Universe is expanding, then what is it expanding into?   This concept is non-trivial to try and explain in a 5 minute YT video, but I do my best.  I hope this helps! Thanks to all of you space fans for watching this channel, it means a lot to me.   Music from Kevin MacLeod: http://incompetech.com   We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.  Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can! Share the podcast with your friends and send the Patreon link to them too!  Every bit helps! Thank you! ------------------------------------ Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness! http://cosmoquest.org/Donate This show is made possible through your donations.  Thank you! (Haven't donated? It's not too late! Just click!) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].