Astronauts go on 2nd spacewalk at space station

(AP) -- Astronauts took another spacewalk at the international space station Saturday, this time to lighten the workload for future crews.

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<p><a href="http://www.physorg.com/news156842454.html">Astronauts go on 2nd spacewalk at space station</a></p> <p>(AP) -- Astronauts took another spacewalk at the international space station Saturday, this time to lighten the workload for future crews.</p>