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News Release Archive:

News Release 501 of 967

July 10, 2003 02:00 PM (EDT)

News Release Number: STScI-2003-19

Oldest Known Planet Identified

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Video: Accretion Model of Planet Formation

Running Time: 15 seconds

An animation showing the theory of an accretion model of planet formation. The oribiting dust grains accrete into "planetisimals." The planetisimals grow inside the disk to form "planetary embryos." Gas-giant planets accrete gas envelopes before disk gas dissappears. Gas-giant planets scatter or accrete remaining planetisimals and embryos.

Video Credit: NASA, L. Barranger, and A. Feild (STScI)

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