>>6315274In terms of what robots are actually in use on the International Space Station in microgravity, there is the Astrobee robot.
It is about a 30 cm cube, that looks a lot like those monitors from Halo lol The cube robots use some sort of nozzled fans or impellers to push themselves around the space station and to translate and rotate 3-axis in any direction.
The Astrobee has a pointer laser, touch screens and cameras I believe one of the major uses is apparently inventory management (it is very easy to lose or misplace something on a space station, everything must be secured!), moving small cargo items and also documenting experiments. So it is a sort of utility micro-robot
In my opinion, the older precursor to Astrobee known as SPHERES (Synchronized Position Hold Engage and Reorient Experimental Satellites) looked far cooler hehe (a sort of polyhedral or truncated corner cube) with a more cyberpunk colouring. However, SPHERES relied on gas canisters, similar to paintball gun canisters, so the newer Astrobee is definitely an improvement. SPHERES has some interesting attachments such as halo rings and goggles and things for performing various microgravity experiments
Pic related shows the new Astrobee at the top, va older SPHERES at the bottom. These robots are all free-floating. They really look like the Monitor from Halo, it cannot be a coincidence