Astronomy Videos

Our full collection of all Deep Astronomy videos. Here you'll find everything from live astronomy hangouts to regular space news episodes and short space documentaries. You can browse by keyword, specific categories or just have poke around and see what you can find. There's definitely something for everyone!

Found 1 videos tagged with "why is the universe flat" remove tag

How Do We Know the Universe is Flat?

28th Oct, 2010 - 729K views

Special thanks to space fan http://www.youtube.com/tsjoencinema ! Your suggestion, while it didn't have the MOST votes, had enough to justify my doing this since I've been wanting to for a while. Thanks to everyone for participating, and keep vot