NASA will send a so-called "robotic hotel" to the International Space Station on board the next commercial replenishment mission to launch this week aboard a SpaceX Falcon 9 rocket. The robot hotel is better known as the "Robotic Tool Stowage" unit, or "RiTS" for short, because NASA loves nothing more than acronyms. The designation may not be quite as appropriate as "Garage" – this unit is essentially a protected parking space for robots when not in use. It protects you from the potential dangers of staying in outer space, including exposure to radiation, and potential hazards hit by micrometeors and other debris.
The first guests in the hotel will be two Robots called Robotic External Leak Locators (RELLs). They do what they promise and find leaks inside the ISS outer hull, which is a key task. And in the past they were kept in the ISS when not in use, but the space in the station itself is tight. So you can save a lot at any time, which is good for astronauts and for ongoing research and other equipment. [1