CSI “Space Oddity” Season 9 Episode 20 April 14, 2009 CSI CSI Season 9 Episode 20, “Space Oddity”: Watch a sneak peek of this new episode airing this Thursday April 16 at 9pm on CBS. Read all our CSI coverage. Episode Synopsis: CSI “Space Oddity” Season 9 Episode 20 – When Hodges and Wendy run into each other at a science fiction convention for one of their favorite classic television shows, they end up investigating the murder of one of their beloved actors, on CSI: CRIME SCENE INVESTIGATION, Thursday, April 16 (9:00-10:01 PM, ET/PT) on the CBS Television Network. Kate Vernon (“Battlestar Galactica”) guest stars as Dr. Penelope Russell. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Google+ (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pocket (Opens in new window)