burying in a new compartment oracle ' s robotic elbow collided with a hot surface that has researchers talking about the prospect of next uncovering an ice layer . " we have dug a trench and excavation a hard layer at the same height as the ice structure in our other grave , " stated wa university robotic arm investigator for mars , neil arvidson . the arm try at least three times to penetrate the layer , but was fails . as a further the hand go into a holding pattern , requesting its current command .
A robotic arm has been used for scientific discoveries.