
The space agency even added a 16th day to the astronauts' mission in the hope they could get the urine processor flowing smoothly. Last week, the water-and-urine recycling system malfunctioned during four tests, including one in which the processor shut itself down after running for only two hours and another in which it triggered an alarm on the space station.
Crew members today are transferring materials set to return to Earth from the station to the Endeavour. If all goes well, water made from recycled urine will be added to the menu during extended space missions, alongside astronaut cuisine cooked up by food scientists in the Space Food Systems Laboratory at NASA's Johnson Space Center in Houston, who have been trying to spice up space fare.