Mars Rover Curiosity Flexes Robotic Arm for First Time

NASA’s Mars rover Curiosity flexed its long robotic arm for the first time on the Red Planet Monday, passing a critical health check with flying colors, mission managers say. The rover unfolded the robotic arm and performed an intricate series of test maneuvers to make sure the 7-foot-long appendage is in good working order. Curiosity’s […]