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NASA Explores Role of Space Debris in Shuttle Disaster

NASA is exploring several theories about what could have caused the break-up of the space shuttle Columbia. One likely cause also is one of the most difficult to prove -- that the space shuttle was hit by a piece of debris in orbit. NPR's Richard Harris reports.

Copyright 2003 NPR

Richard Harris
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.