The #AstroFriday question for this week is about how astronauts use water in space.
Project WET: What are the most challenging things that you have to do in space with less or even no water? Is water used differently in space than on Earth?
Astronaut Ricky Arnold: Our water processing equipment turns urine, condensation, and collected perspiration into very pure drinking water. It is complex equipment in a harsh environment. We spend a lot of time maintaining and, when needed, repairing this equipment that is absolutely vital to our survival. We don't take any water for granted on the space station.
Q&A in Pictures