NASA: progress studying shuttle tank foam

NASA engineers say they are closer to resolving the problem of large chunks of foam insulation falling off space shuttle external fuel tanks during launch.

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<p><a href="http://www.physorg.com/news7311.html">NASA: progress studying shuttle tank foam</a></p> <p>NASA engineers say they are closer to resolving the problem of large chunks of foam insulation falling off space shuttle external fuel tanks during launch. </p>