Shubhanshu Shukla, first Indian to visit ISS, shared how astronauts bathe in space. He said water floats instead of flowing downward in space, so astronauts cannot take showers and instead use specially prepared hygiene kits designed for microgravity. The kit has a washcloth with disinfecting shampoo and after adding water it becomes damp. Astronauts use that cloth to wipe themselves.