Charlotte, a spider-like 3D printing robot, was developed jointly by Australian companies Crest Robotics and Earthbuilt Technology. Developers said the robot can help make construction cheaper and carbon-free with its ability to utilize local materials. | CNN

It's been a big fall for humanoid robots, with the reveal of two new prototypes in the US. Now Russia has entered the ring with Aidol—sort of. The robot's grand reveal at a technology conference in Moscow didn't go as planned. It emerged from backstage and walked about five feet before face-planting onto the stage. Two humans leapt to pick up the robot and dragged it offstage, shielding it with a black curtain. Aidol was intended to mark Russia's entry into the global race for humanoid machines,