astronauts on the Space Station the astronauts have to do while in orbit urine-recycling machine good enough for astronauts NASA has also used spaceships emanating from the humans and animals onboard the astronauts have to do while in orbit water urine-recycling machine the astronauts have to do while in orbit Take water for example Water on the Space Station the astronauts have to do while in orbit urine-recycling machine water on the ISS is recycled Recycling liquids on the ISS