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NASA: Comets Richer Than Previously Thought

At a NASA press briefing today, scientists said that comets are more than just a loose collection of space rubble. They can be solid bodies with craters and other geological features. The findings come from observations by the Stardust spacecraft, which had a close encounter with the comet Wild 2 in January. NPR's Richard Harris reports.

Copyright 2022 NPR. To see more, visit https://www.npr.org.

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.