The world's most advanced humanoid robot, Boston Dynamics' Atlas, is back, and it's moving some medium-weight car parts. While the robot has mastered a lot of bipedal tricks like walking, running, jumping, and even backflips, it's still in the early days of picking stuff up. When we last saw the robot, it had sprouted a set of rudimentary hand clamps and was using those to carry heavy objects like a toolbox, barbells, and a plank of wood. The new focus seems to be on "kinetically challenging" work—these things are heavy enough to mess with the robot's balance, so picking them up, carrying them, and putting them down requires all sorts of additional calculations and planning so the robot doesn't fall over.