A limber robot perched atop a satellite carried out a series of refueling tests in space for the first time, bringing China a step closer to in-orbit servicing capabilities that could extend the lifespan of spacecraft. Chinese startup Sustain Space tested its flexible robotic arm through simulated orbital tasks, successfully verifying four modes of operation during the technology demonstration, according to a company statement. The relatively bendy robot is made of a series of spring-like tubes, allowing it to twist or curl in different ways to refuel and repair spacecraft, as well as move space debris out of the way....