The question ROS is running on the Robonaut, but is the Robonaut running on the ISS (post 2015)? asks about Robot Operating System or ROS.
In the Art Technica video Talking Space and Robots with NASA's Terry Fong
NASA's Terry Fong, head of the Intelligent Robotics Group, talks about the agency's autonomous robot efforts and the future of bots in space.
he talks about the three Astrobee free-flying autonomous robots that will go to the ISS. After about 02:25
he says that the Astrobee's use ROS.
Following Robonaut, is this the second time that a mobile, autonomous robot will use ROS in space? (presuming that Robonaut has actually done this) Or has ROS been used in other mobile, autonomous scenarios on the ISS, or elsewhere in space?