Jerry Waechter of team Middleman from Dunedin, Florida, works on their robot named Ro-Bear during the 2014 NASA Centennial Challenges Sample Return Robot Challenge, Tuesday, June 10, 2014, at the Worcester Polytechnic Institute (WPI) in Worcester, Mass. Team Middleman is one of eighteen teams competing for a $1.5 million NASA prize purse. Teams will be required to demonstrate autonomous robots that can locate and collect samples from a wide and varied terrain, operating without human control. The objective of this NASA-WPI Centennial Challenge is to encourage innovations in autonomous navigation and robotics technologies. Innovations stemming from the challenge may improve NASA's capability to explore a variety of destinations in space, as well as enhance the nation's robotic technology for use in industries and applications on Earth. Photo Credit: (NASA/Joel Kowsky)