Robotics and AI Institute’s Two-Armed Robot Demonstrates Throwing and Catching a Ball

On October 9, 2026, Tech Xplore reported that a research team at the Robotics and AI Institute (RAI), based in Cambridge, Massachusetts, developed a two-armed robot called “AthenaZero.” According to the article, the robot completed three baseball-related tasks: throwing, catching and hitting a ball with a bat.

RAI’s demonstration of throwing, catching and batting with a two-armed robot offers an indication that the focus of robot control is shifting from simple movement toward object manipulation. Considered alongside reports of the institute’s acquisition, information from the source suggests that the value of its technology assets lies not only in its research themes but also in accumulated, demonstrable manipulation capabilities.

This research result is significant in that RAI has highlighted the movement capabilities of a two-armed manipulator. However, the main source is a research feature that includes interviews, and it provides limited quantitative comparisons and information about reproducibility conditions. Therefore, what can be confirmed here is that a two-armed robot billed as moving “like a human” has reached demonstrations that include throwing and catching a ball and batting. An earlier article by this newspaper, “SoftBank Group Reportedly Agrees to Acquire Robotics and AI Institute” (2026-09-18), covered developments involving RAI’s ownership and governance. This report, by contrast, focuses not on the terms of the acquisition but on the substance of the technology developed by the research organization. In other words, the earlier report focused on who would own RAI, while this one focuses on the level of implementation in robotic manipulation. This distinction matters because reports about the acquisition of research assets and the question of what a robot can actually do are separate issues. Another related report, the previously cited article from 2026-09-18, said that RAI works on robot control, perception, manipulation, mobility and AI. AthenaZero can be seen as a concrete example of the “manipulation” component. Based on publicly available information, discussion of humanoid robots tends to focus on mobility, but the ability to handle objects is what creates value in real-world operations. Throwing and catching a ball or batting are easy-to-understand demonstrations, but they require simultaneous contact control, visual tracking and timing, so they are not merely tasks chosen for their visual appeal. That said, the main source only introduces a paper published in Science Robotics, and the excerpt does not provide enough information about important details such as the joint configuration, control methods, learning techniques, success and failure rates, or disturbance conditions. Points to check next include, first, AthenaZero’s mechanical configuration and control methods; second, the success criteria and reproducibility of the three tasks; and third, how far the performance presented in the paper can extend to tasks outside the laboratory. See the original article and the full paper for details.