Today we're taking a break for another round of "Bad Astronomy" Crash Course Astronomy posters available at DFTBA.com http://store.dftba.com/products/crashcourse-astronomy-poster music: "Batty McFaddin" - Kevin MacLeod http://incompetech.com/ -- PBS Digital Studios: http://youtube.com/pbsdigitalstudios Follow Phil on Twitter: https://twitter.com/badastronomer Want to find Crash Course elsewhere on the internet?
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