Curiosity, FourSquare Check-ins, and the Ultimate Challenge

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NASA’s Curiosity Mars rover checked in on Mars Wednesday using the mobile application Foursquare. This marks the first check-in on another planet. Users on Foursquare can keep up with Curiosity as the rover checks in at key locations and posts photos and tips, all while exploring the Red Planet.

But how fast could it go round the Top Gear track?