Rotating 3D Map of Comet Lemmon Releasing HCN Molecules

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Rotating 3D Map of Comet Lemmon Releasing HCN Molecules

This rotating 3D ALMA map shows how HCN molecules are released from the nucleus of comet Lemmon and then spread evenly throughout the atmosphere, or coma. Similar maps revealed that HCN and formaldehyde are produced in the coma, rather than originating from the comet's nucleus. Read more: https://public.nrao.edu/news/pressreleases/comets-alma Credit: Brian Kent (NRAO/AUI/NSF). Music: Mark Mercury.

Credit: Brian Kent (NRAO/AUI/NSF). Music: Mark Mercury.

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Asteroids, Comets and More Astrochemistry The Solar System

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