NASA: Tile Repair Test a Huge Success

By LIZ AUSTIN PETERSON, Associated Press Writer, Space & Earth science / Space Exploration

This image from NASA TV shows astronauts during a spacewalk Thursday, March 20, 2008. Two spacewalking astronauts pulled out a caulk gun and high-tech kind of Silly Putty on Thursday night and tested a method for patching shuttle thermal tiles. (AP Photo/NASA)

(AP) -- Like handymen caulking a bathtub, two spacewalking astronauts squirted pink putty into deliberately damaged tile samples to test a new technique for repairing the space shuttle's fragile heat shield.

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