A sidewalk robot fleet is only operationally meaningful when it reaches the scale at which rare edge cases stop being rare. Serve Robotics says it's crossed that threshold, deploying over 2,000 delivery robots across multiple U.S. metro areas-the inflection point that shifts the engineering conversation from "Can it work?"...

"On this New Year’s Day, we open a new chapter with a human-robot tennis rally. Witness the powerful and precise strokes of Walker S2," UBTech wrote in the description of a video showing its Walker S2 humanoid returning live tennis shots against a human. Tennis seems a playful setting for...