Did you know it was YouTube's Geek Week? Well, it is, and Neil deGrasse Tyson has scoured Youtube for the 10 most exciting science videos in recent times. I mean, these are super cool. From watching how water behaves in space to a robotic Cheetah that can run faster than an Olympic sprinter, this is really a great roundup of fun and eye opening highlights in the science world. Which one is your favorite?