Astronauts try to work out kinks in urine machine

(AP) -- Astronauts hope they have a solution for getting a pivotal piece of equipment working so it can convert urine and sweat into drinkable water and allow the international space station to grow to six crew members.

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<p><a href="http://www.physorg.com/news146641799.html">Astronauts try to work out kinks in urine machine</a></p> <p>(AP) -- Astronauts hope they have a solution for getting a pivotal piece of equipment working so it can convert urine and sweat into drinkable water and allow the international space station to grow to six crew members.</p>