These are several videos of NASA testing out its new shape memory alloy tires for use on future trips to distant planets that will probably never happen. The tires are constructed out of a titanium-nickel alloy, and can return to their original shape after being deformed by rolling over a rock or the leg of a jaywalking alien. This isn't a crosswalk buddy, can't you read the signs?! Whoa -- okay now, let's put the laser blaster away. Oh God, oh God, please don't kill me! *shaking head* Whew -- it was a just a daydream. "Are you okay, GW?" Why wouldn't I be? I've never been okayer. "Because you're crying." It was just so vivid.
Keep going for the the video above of a Mars simulation, a video of a tire being tested on a Jeep in the grass, and a more informative minute and a half long video.