Programming note: after this week's show, I'm changing time slots. This will be my last Wednesday afternoon Hangout. I'm switching to Thursdays at noon my time, 1800 UTC. My next one will be on Thursday, December 6. I'm hoping that time will be a bit friendlier to Europeans, though I realize it now falls within the workday for most Americans.
NASA / JPL
Curiosity sampling the Martian surface
Artist's concept of Curiosity using its turret-mounted tools to examine a rock on Mars.