In Frank Herbert's epic ecological novel Dune (1965), set on the fictitious desert planet Arrakis in another star system, water is so precious that even perspiration and breath moisture are captured and purified for drinking.
"The Russians are ahead of us," says Robyn Carrasquillo, engineering manager for ECLSS. "The original Salyut and Mir spacecraft were able to condense humidity right out of the air and use electrolysis—an electric current run through the water—to produce oxygen for breathing." NASA's new regenerative ECLSS, to be launched to ISS in 2008, goes further: "it can recover urine in addition to humidity."
Не знал. Думал что на МКС такое изначально действует.