Article Photos: Norman competitors to take on 15 tech challenges from NASA 5/6

Lego's new robotic snake "Reptar" is one of 17 possible creations available in a new kit, but NASA is asking people to design a remote operation system for a Lego rover as part of its International Space Apps Challenge taking place around the world, including in Norman, this weekend. AP PHOTO/LEGO <strong>Philip Elberling</strong>