Astrobee is NASA's new free-flying robotic system. It also consists of a system that serves as a research platform.
The system consists of three cube-shaped robots, some software and a docking stations for recharging. Three free-flying robots are named Honey, Queen, and Bumble. The three robots propel themselves using electric fans that allow them to fly through the microgravity environment of the International Space Station.
All of the robots are equipped with a perching arm that allows them to grasp handrails to either conserve energy or grab items. They can automatically return to their docking station When they are running low on charge.
The Astrobee robots are built on the knowledge acquired from operating SPHERES (Synchronised Position Hold, Engage, Reorient, Experimental Satellite) robots which have been operating on the International Space Station for over a decade.