September 28, 2011 Episode 20: October 2011 Download this episode HD QuickTime 62.3 MB Medium QuickTime 25 MB HD WMV 30.8 MB Medium WMV 13.7 MB HD Xvid 60.9 MB Medium Xvid 28.8 MB Embed Embed Put this video on your Website. Copy and paste the HTML code below: Shownotes The Andromeda Galaxy shows off its spiral arms.
