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AFTER spending nearly $200 million and more than two years analysing and upgrading the shuttle’s external fuel tank and its problematic foam insulation, NASA is left wondering why pieces of foam fell off again during the launch of Discovery last week. Given that it was a piece of falling foam that doomed the shuttle Columbia in 2003, NASA has grounded its other shuttles until the problem is solved.
“This is something that has to be fixed,” said Discovery’s commander, Eileen Collins, during a radio interview from…
