A robonaut is a humanoid robot, part of a development project conducted by the Dexterous Robotics Laboratory at NASA's Lyndon B. Johnson Space Center (JSC) in Houston, Texas. Robonaut differs from other current space-faring robots in that, while most current space robotic systems (such as robotic arms, cranes and exploration rovers) are designed to move large objects, Robonaut's tasks require more dexterity. The latest, Robonaut2, is the first US-built robot on the ISS, delivered by STS-133 in Feb 2011, is a robotic torso designed to assist with crew EVA's and can hold tools used by the crew. However, Robonaut2 does not have adequate protection needed to exist outside the space station and enhancements and modifications would be required to allow it to move around the station's interior. NASA states "Robonauts are essential to NASA's future as we go beyond low Earth orbit", and Robonaut2 will provide performance data about how a robot may work side-by-side with astronauts.