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Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. Hofgartenstraße 8 80539 München, Germany http://www.mpg.de
Contact Ms Dr. Lucille Le Corre +49 5556 979143
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Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V.

Kohlenstoff in Vestas Kratern

Gewaltige Einschläge von Asteroiden könnten kohlenstoffreiches Material auf den Protoplaneten und ins innere Sonnensystem getragen haben

(PresseBox) (München, )
Der Protoplanet Vesta hat eine bewegte Vergangenheit: Aufnahmen der deutschen Framing Camera an Bord der NASA-Raumsonde Dawn, die Vesta bis September dieses Jahres etwa ein Jahr lang begleitet hat, zeigen zwei gewaltige Krater auf der Südseite des Himmelskörpers. Doch die gigantischen Einschläge haben nicht nur seine Form, sondern auch seine mineralogische Zusammensetzung dauerhaft verändert. Wissenschaftler unter Leitung des Max-Planck-Instituts für Sonnensystemforschung in Katlenburg-Lindau konnten nun zeigen, dass die beiden kosmischen Brocken, welche die Südseite der Vesta erschütterten, dunkles, kohlenstoffhaltiges Material mitbrachten. Ähnliche Ereignisse könnten in der Frühzeit des Sonnensystems auch die inneren Planeten wie die Erde mit Kohlenstoff, einem Grundbaustein gftlekbmgah Kknckwxmorff, nbdedser dzvau.

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