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Comet Catalina Suggests Comets Delivered Carbon to Rocky Planets Source: NASA Comet Catalina In early 2016, an icy visitor from the edge of our solar system hurtled past Earth. It briefly became visible to stargazers as Comet Catalina before it slingshot past the Sun to disappear forevermore out of the solar system. Among the many observatories that captured a view of this comet, which appeared near the Big Dipper, was the Stratospheric Observatory for Infrared Astronomy, NASA s telescope on an airplane. Using one of its unique infrared instruments, SOFIA was able to pick out a familiar fingerprint within the dusty glow of the comet s tail - carbon.

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