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Shuttle Columbia Investigation

Investigators continue to gather clues that might help explain what went wrong when the space shuttle Columbia broke up Saturday morning, killing all seven crewmembers. Today's memorial service with President Bush will offer NASA officials rare pause in an otherwise tedious examination of flight videos, computer data, and debris. NPR's Richard Harris reports that while NASA is making strides in piecing the accident together, officials say they're far from any conclusions about what caused the disaster.

Copyright 2003 NPR

Award-winning journalist Richard Harris has reported on a wide range of topics in science, medicine and the environment since he joined NPR in 1986. In early 2014, his focus shifted from an emphasis on climate change and the environment to biomedical research.