19-July-2005, 05:50 PM
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Vulcan Moderator
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Join Date: Oct 2001
Location: Greenbelt, MD
Posts: 24,311
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Stellar disk doesn't want to form planets
Astronomers Debate Whether Oldest Known Dust Disk Will Ever Form Planets
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Every rule has an exception. One rule in astronomy, supported by considerable evidence, states that dust disks around newborn stars disappear in a few million years. Most likely, they vanish because the material has collected into full-sized planets. Astronomers have discovered the first exception to this rule - a 25-million-year-old dust disk that shows no evidence of planet formation.
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