Q and BA is the videoblog from Bad Astronomy (www.badastronomy.com), where every week astronomer Phil Plait answers reader questions. Got a cosmic question you want answered? The sky's the limit!
This is the audio only version of Q and BA Episode 1: Galaxies. See the blog entry for Episode 1 for more details: http://badastronomy.libsyn.com/index.php?post_id=179895