I'm hosting this week's Cosmoquest Astronomy Hour on Google+. Rather than having a special guest I'll be speaking myself about what's going on with Curiosity, and will leave lots of time to answer people's questions. Join me at 1600 PDT / 2300 UTC at cosmoquest.org/hangouts. I'll embed the video here when we go live; or you can come back to this post after it's over to watch the replay. Feel free to add comments here with questions you'd like me to answer!