Mars Gives Opportunity a Whirl

I love being surprised by a picture. I first saw the photo above when my friend Bobak Ferdowsi tweeted a link to it, having seen it himself on the RidingWithRobots Twitter feed. When I saw it, I literally gasped. It's a view from the Opportunity rover on Mars, showing a dust devil whipping across the floor of a huge crater. Oh my, yes. Let me explain. I write a lot about the Curiosity Mars rover, of course, the powerful mobile science lab currently moving across the surface of the red planet. Bu...