In case you missed the talk (we’ll the videos up as soon as we can*) you can read all about it!
Greg Scheiderer stopped by: http://www.examiner.com/x-30469-Seattle-Astronomy-Examiner~y2010m3d18-In-search-of-missing-molecular-hydrogen
*If you have a passion for video editing and don’t require any compensation besides a beer or two, we’d love the help! Email us (webmaster at engage-science.com).