Question

what if a astronauts go to space for 1 year or more than a month how will they get water

Answer 1

astronauts of future who will be going to explore Mars and other planets of the solar system needs to spends more amount of time in space. in that case they can supply necessary water to their body juicy foods. these food with prevent them from rehydration. also there should be enough supply of water

Answer 2

Water tanks can't be constantly shipped up in space. Therefore, the Space station has a complex system of water. It squeezes every last drop of drinkable liquid out of the environment. That's what astronauts drink. It includes recycled shower water, urine and sweat. The spaces station also keeps about 530 gallons of water in reserve in case of an emergency.