NASA has created a robot for DARPAs upcoming Robotics Challenge Trials. The Valkyrie is a six-foot two humanoid machine with detachable arms, sonar sensors, mounted cameras, and a glowing, Tony Stark-esque circle in the middle of its chest, that the space agency says is mobile and dexterous enough to enter disaster zones to provide search and rescue functions. Project and group lead for NASA JSCs Dextrous Robotics Lab, Nicolaus Radford, tells IEEE Spectrum that Valkyrie was designed specifically for the DARPA competition. Valkyrie builds on the space agencys previous humanoid robot, Robonaut, currently in orbit around the Earth in the International Space Station.