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Article: Comet dust changes ideas about start of Solar System: Some grains retrieved from tail of Wild 2 predate Sun
- Article from:
- Charleston Daily Mail
- Article date:
- December 15, 2006
- Author:
CopyrightCopyright 2006 Charleston Daily Mail. Provided by ProQuest LLC. (Hide copyright information)
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SAN FRANCISCO - Comets, the lonely wanderers of the solar system
that some scientists think seeded Earth with the ingredients for
life, are proving to be far more complex than anyone thought,
containing a "zoo" of materials, including some compounds that appear
to predate the sun.
Speaking Thursday at a meeting of the American Geophysical Union,
scientists reported that there was enough mixing in the early solar
system to send material from the proto-sun out into deep space, where
it could be picked up by comets.
That discovery could alter theories about how stars and the
planets around them form from primordial dust and gas, according to
the team of researchers.
The findings, to be ...