Study Suggests Oort Cloud Comets Delivered Life-Enabling Carbon

Comet
Illustration of a comet from the Oort Cloud as it passes through the inner solar system with dust and gas evaporating into its tail.
Credit: NASA/SOFIA/Lynette Cook
HOUSTON—Comet impacts during the Solar System’s planet-forming period about 4.5 billion years ago may have delivered the carbon essential for life to the rocky planets in the Sun’s habitable zone, according to a new study of the comet Catalina. The Feb. 8 study is entitled “The Coma Dust of Comet C...

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