Martian dust devils or Black Rock City?

NASA's Mars Rover captured a series of dust devils rolling across a Martian plain over a period of hours. An animated GIF on the NASA website shows the devils' progression over time — it's like you're right there on the red planet! Funny how this scene looks an awful lot like the playa where Burning Man is taking place this week. Only, there are probably a lot more alien life forms in Black Rock City. Link (Thanks, Peter Davidson)