Dust from comet's tail throws up solar system mystery

  Dust particles collected from the tail of a comet and returned to Earth by the spacecraft
  Stardust are challenging scientists' theories of how the solar system formed.

  The first examination of the particles, which were collected by the Nasa probe on a 2.8bn-mile
  (4.6bn-kilometre) round trip to comet Wild 2, has revealed minerals that could only have
  formed at blistering temperatures close to the sun.


  Wednesday March 15, 2006
  The Guardian
  http://www.guardian.co.uk/space/article/0,,1731160,00.html

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