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News and Views
Nature 448, 1003 (30 August 2007) | doi:10.1038/4481003a; Published online 29 August 2007
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Planets: The first movement
Jeff Cuzzi1
Abstract
How do large objects form from the dusty gas surrounding a young star? A simulation suggests that several familiar processes, among them gas turbulence and self-gravitation, might work together to get the job done.
Making planets is tricky, and probably takes several stages. First, tiny interstellar grains must accrete into mountain-sized objects massive enough to decouple from their cocoon of nebula gas.
- Jeff Cuzzi is at the NASA Ames Research Center, Moffett Field, California 94035, USA.
Email: jcuzzi@arc.nasa.gov
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