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!

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Why is the Sky Dark at Night?

4th Sep, 2010 - 139.1k views

Get astronomy twitter posts here: http://twitter.com/DeepAstronomy A question that bothered me a lot when I was younger, and it bothered me even more when I found out about Olber's Paradox. Here's my take. Music used: Revised Youth - Bro