Remains have been found from all seven astronauts killed when the space shuttle Columbia broke apart upon re-entry Saturday, NASA officials say. Hear NPR's Steve Inskeep and Richard Harris
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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.
Steve Inskeep is a host of NPR's Morning Edition and Up First.
