https://www.sciencedaily.com/releases/2019/11/191126155502.htm

They become expensive and dangerous flotsam, orbiting Earth for years or generations until gravity eventually draws them to a fiery death in the atmosphere.? University of Cincinnati professor Ou Ma is engineering robotics technology to fix orbiting satellites in his Intelligent Robotics and Autonomous Systems Lab. He envisions robotic satellites that can dock with other satellites for repairs or refueling.

The most useful repair satellite will be able to complete multiple tasks, Ma said. During his career, he has worked on various projects relating to the robotic arms aboard the International Space Station and the former space shuttle program. His signature is floating in orbit on a piece of equipment aboard the space station.