After several days without luck, astronauts finally ran a successful test on equipment that turns urine into drinking water — a necessity for supporting the international space station’s crew, which will soon double. “Not to spoil anything, but I think up here the appropriate words are ‘Yippee!'” space station commander Mike Fincke told Mission Control early Tuesday morning, shortly before bedtime. “There will be dancing later,” Mission Control replied. Astronauts had spent a frustrating five days trying to get the urine processor working.